Analyzed URL
https://www.nasa.gov/
Measured 4 days ago
AI-Ready Score
75
/ 100
Good
out of 100
Token Savings
HTML tokens
121.714
Markdown tokens
128
Savings
100%
Score Breakdown
Accessibility
77/100
AI Discoverability
60/100
Structured Data
100/100
Semantic HTML
76/100
Content Efficiency
55/100
Emerging protocols
0 of 6 detectedWell-known endpoints AI agents look for. Detected here means an agent can discover and connect to your service automatically.
-
OAuth Protected Resource RFC 9728
/.well-known/oauth-protected-resource -
OAuth Discovery RFC 8414
/.well-known/oauth-authorization-server -
MCP Server Card SEP-1649 draft
/.well-known/mcp/server-card.json -
A2A Agent Card A2A v1.0
/.well-known/agent-card.json -
API Catalog RFC 9727
/.well-known/api-catalog -
Agent Skills index Discovery RFC v0.2.0 draft
/.well-known/agent-skills/index.json
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What we measured Main content starts at 67% of HTML
The main content appears late in the HTML document. AI agents may give more weight to content that appears early.
How to implement
Restructure your HTML so that <main> or <article> content appears before sidebars and supplementary content.
Paste into a coding agent to make the fix
What we measured No Markdown for Agents support detected
Your site doesn't support Markdown for Agents. This Cloudflare standard lets AI agents request content in markdown format, reducing token usage by ~80%.
How to implement
Implement one or more: (1) Respond to Accept: text/markdown with markdown content. (2) Serve .md URLs (e.g., /page.md). (3) Add <link rel="alternate" type="text/markdown"> tags. (4) Add Link HTTP headers for markdown discovery.
Paste into a coding agent to make the fix
What we measured Content ratio: 0.2% (700 content chars / 338085 HTML bytes)
Your page has a low ratio of actual content to total HTML. Much of the page weight is markup, scripts, or styles rather than content.
How to implement
Move CSS to external stylesheets, remove inline styles, minimize JavaScript, and ensure the HTML focuses on content structure.
Paste into a coding agent to make the fix
What we measured No llms.txt found
Your site doesn't have an llms.txt file. This is the emerging standard for helping AI agents understand your site structure.
How to implement
Create an /llms.txt file following the llmstxt.org specification. Include a site description and links to your key pages.
Paste into a coding agent to make the fix
What we measured No Content-Signal found (robots.txt or HTTP headers)
No Content-Signal directives found. These tell AI agents how they may use your content (search indexing, AI input, training data). The recommended location is robots.txt.
How to implement
Add Content-Signal to your robots.txt: User-agent: *\nContent-Signal: search=yes, ai-input=yes, ai-train=no. You can also add it as an HTTP header on markdown responses.
Paste into a coding agent to make the fix
What we measured 42 semantic elements, 513 divs (ratio: 8%)
Your page relies heavily on <div> elements. Semantic elements like <section>, <nav>, <header>, <footer>, and <aside> provide meaningful structure for AI agents.
How to implement
Replace generic <div> containers with appropriate semantic elements. Use <section> for thematic groups, <nav> for navigation, <header>/<footer> for page/section headers and footers.
Paste into a coding agent to make the fix
What we measured no <h1>
Your heading structure has issues (skipped levels or multiple h1 tags). A clean hierarchy helps AI agents understand content organization.
How to implement
Ensure you have exactly one <h1> per page, and headings follow sequential order: h1 > h2 > h3. Don't skip levels (e.g., h1 directly to h3).
Paste into a coding agent to make the fix
What we measured 119/2529 elements with inline styles (4.7%)
Many elements have inline style attributes. These add noise for AI agents extracting content.
How to implement
Move all inline styles to CSS classes in your stylesheet. Use utility CSS frameworks like Tailwind if you need many unique styles.
Paste into a coding agent to make the fix
### Freedom 250 ## NASA Celebrates America’s 250th Birthday Our spirit of adventure and innovation will raise our nation to new heights. From the earliest days of exploration, to the first steps on the Moon and the missions shaping our future, NASA represents the spirit of discovery that defines our nation. As the United States approaches its semiquincentennial, Freedom 250 highlights how innovation, courage, and scientific leadership have carried America forward — and how NASA continues to expand the frontier for the next generation. [Learn More about NASA Celebrates America’s 250th Birthday](https://www.nasa.gov/freedom250/)
NASA [](https://www.nasa.gov/) - Explore Search [](https://www.nasa.gov/) Search ## Suggested Searches - [Climate Change](https://www.nasa.gov/?search=Climate%20Change) - [Artemis](https://www.nasa.gov/?search=Artemis) - [Expedition 64](https://www.nasa.gov/?search=Expedition%2064) - [Mars perseverance](https://www.nasa.gov/?search=Mars%20perseverance) - [SpaceX Crew-2](https://www.nasa.gov/?search=SpaceX%20Crew-2) - [International Space Station](https://www.nasa.gov/?search=International%20Space%20Station) - [View All Topics A-Z](https://www.nasa.gov/a-to-z-topics-listing/) - [Home](https://www.nasa.gov/) - [Missions](https://www.nasa.gov/nasa-missions/) - [Humans in Space](https://www.nasa.gov/humans-in-space/) - [Earth](https://science.nasa.gov/earth/) - [The Solar System](https://science.nasa.gov/solar-system/) - [The Universe](https://science.nasa.gov/universe/) - [Science](https://science.nasa.gov/) - [Aeronautics](https://www.nasa.gov/aeronautics/) - [Technology](https://www.nasa.gov/technology/) - [Learning Resources](https://www.nasa.gov/learning-resources/) - [About NASA](https://www.nasa.gov/about/) - [Español](https://www.nasa.gov/es/) --- - [News & Events](https://www.nasa.gov/#) - [Multimedia](https://www.nasa.gov/#) - [NASA+](https://plus.nasa.gov/) ### Featured [  7 min read ### How NASA’s Artemis III Lander Test Will Pave Way for Moon Landings article2 days ago ](https://www.nasa.gov/directorates/esdmd/artemis-campaign-development-division/human-landing-system-program/how-nasas-artemis-iii-lander-test-will-pave-way-for-moon-landings/)[  5 min read ### NASA’s Perseverance Rover Reads Record of Ancient Mars Impacts article2 days ago ](https://www.nasa.gov/solar-system/planets/mars/nasas-perseverance-rover-reads-record-of-ancient-mars-impacts/)[  3 min read ### What’s Up: July 2026 Skywatching Tips from NASA article2 weeks ago ](https://science.nasa.gov/solar-system/whats-up-july-2026-skywatching-tips-from-nasa/) Back --- [### Missions](https://www.nasa.gov/nasa-missions/) - [Search All NASA Missions](https://www.nasa.gov/missions/) - [A to Z List of Missions](https://www.nasa.gov/a-to-z-of-nasa-missions/) - [Upcoming Launches and Landings](https://www.nasa.gov/events/) - [Spaceships and Rockets](https://www.nasa.gov/humans-in-space/spaceships-and-rockets/) - [Communicating with Missions](https://www.nasa.gov/communicating-with-missions/) - [Artemis](https://www.nasa.gov/humans-in-space/artemis/) - [James Webb Space Telescope](https://science.nasa.gov/mission/webb/) - [Hubble Space Telescope](https://science.nasa.gov/mission/hubble/) - [International Space Station](https://www.nasa.gov/international-space-station/) - [OSIRIS-Rex](https://science.nasa.gov/mission/osiris-rex/) [### Humans in Space](https://www.nasa.gov/humans-in-space/) - [Why Go to Space](https://www.nasa.gov/humans-in-space/why-go-to-space/) - [Astronauts](https://www.nasa.gov/humans-in-space/astronauts/) - [Commercial Space](https://www.nasa.gov/humans-in-space/commercial-space/) - [Destinations](https://www.nasa.gov/humans-in-space/destinations/) - [Spaceships and Rockets](https://www.nasa.gov/humans-in-space/spaceships-and-rockets/) - [Living in Space](https://www.nasa.gov/humans-in-space/living-in-space/) [### Earth](https://science.nasa.gov/earth/) - [Explore Earth Science](https://science.nasa.gov/earth/explore) - [Climate Change](https://science.nasa.gov/climate-change) - [Earth, Our Planet](https://science.nasa.gov/earth/facts) - [Earth Science in Action](https://science.nasa.gov/earth/in-action) - [Earth Multimedia](https://science.nasa.gov/earth/multimedia) - [Earth Data](https://science.nasa.gov/earth/data) - [Earth Science Researchers](https://science.nasa.gov/earth-science) [### The Solar System](https://science.nasa.gov/solar-system/) - [The Sun](https://science.nasa.gov/sun/) - [Mercury](https://science.nasa.gov/mercury/) - [Venus](https://science.nasa.gov/venus) - [Earth](https://science.nasa.gov/earth/facts/) - [The Moon](https://science.nasa.gov/moon/) - [Mars](https://science.nasa.gov/mars) - [Jupiter](https://science.nasa.gov/jupiter) - [Saturn](https://science.nasa.gov/saturn) - [Uranus](https://science.nasa.gov/uranus/) - [Neptune](https://science.nasa.gov/neptune/) - [Pluto & Dwarf Planets](https://science.nasa.gov/dwarf-planets/) - [Asteroids, Comets & Meteors](https://science.nasa.gov/asteroids-comets-meteors/) - [The Kuiper Belt](https://science.nasa.gov/solar-system/kuiper-belt/) - [The Oort Cloud](https://science.nasa.gov/solar-system/oort-cloud/) - [Skywatching](https://science.nasa.gov/skywatching/) [### The Universe](https://science.nasa.gov/universe/) - [Exoplanets](https://science.nasa.gov/exoplanets/) - [The Search for Life in the Universe](https://science.nasa.gov/universe/search-for-life/) - [Stars](https://science.nasa.gov/universe/stars/) - [Galaxies](https://science.nasa.gov/universe/galaxies/) - [Black Holes](https://science.nasa.gov/universe/black-holes/) - [The Big Bang](https://science.nasa.gov/universe/the-big-bang/) - [Dark Energy](https://science.nasa.gov/dark-energy) - [Dark Matter](https://science.nasa.gov/dark-matter) [### Science](https://science.nasa.gov/) - [Earth Science](https://science.nasa.gov/earth-science/) - [Planetary Science](https://science.nasa.gov/planetary-science/) - [Astrophysics & Space Science](https://science.nasa.gov/astrophysics/) - [The Sun & Heliophysics](https://science.nasa.gov/heliophysics/) - [Biological & Physical Sciences](https://science.nasa.gov/biological-physical) - [Lunar Science](https://science.nasa.gov/lunar-science) - [Citizen Science](https://science.nasa.gov/citizen-science/) - [Astromaterials](https://science.nasa.gov/astromaterials/) - [Aeronautics Research](https://www.nasa.gov/aeronautics-research/) - [Human Space Travel Research](https://www.nasa.gov/human-space-travel-research/) [### Aeronautics](https://www.nasa.gov/aeronautics/) - [Science in the Air](https://www.nasa.gov/aeronautics/science-in-the-air/) - [NASA Aircraft](https://www.nasa.gov/aeronautics/aircraft/) - [Flight Research Innovation](https://www.nasa.gov/aeronautics/flight-innovation/) - [Supersonic Flight](https://www.nasa.gov/aeronautics/supersonic-flight/) - [Air Traffic Solutions](https://www.nasa.gov/aeronautics/air-traffic-solutions/) - [Green Aviation Tech](https://www.nasa.gov/aeronautics/ultra-efficient-aviation/) - [Drones & You](https://www.nasa.gov/aeronautics/drones-and-you/) [### Technology](https://www.nasa.gov/technology/) - [Technology Transfer & Spinoffs](https://www.nasa.gov/space-technology-mission-directorate/technology-transfer-spinoffs/) - [Space Travel](https://www.nasa.gov/space-travel-technology/) - [Living in Space](https://www.nasa.gov/space-living-technology/) - [Lunar Surface Technology](https://www.nasa.gov/lunar-surface-technology/) - [Manufacturing and Materials](https://www.nasa.gov/manufacturing-and-materials/) - [Robotics](https://www.nasa.gov/robotics/) - [Science Instruments](https://www.nasa.gov/science-instruments/) - [Computing](https://www.nasa.gov/computing/) [### Learning Resources](https://www.nasa.gov/learning-resources/) - [For Kids and Students](https://www.nasa.gov/learning-resources/for-kids-and-students/) - [For Educators](https://www.nasa.gov/learning-resources/for-educators/) - [For Colleges and Universities](https://www.nasa.gov/learning-resources/colleges-and-universities/) - [For Professionals](https://www.nasa.gov/learning-resources/for-professionals/) - [Science for Everyone](https://science.nasa.gov/for-everyone/) - [Requests for Exhibits, Artifacts, Speakers & Flyovers](https://www.nasa.gov/requests-for-exhibits-artifacts-or-speakers/) - [STEM Engagement at NASA](https://www.nasa.gov/learning-resources/stem-engagement/) [### About NASA](https://www.nasa.gov/about/) - [NASA's Impacts](https://www.nasa.gov/nasa-impact/) - [Centers and Facilities](https://www.nasa.gov/centers-and-facilities/) - [Directorates](https://www.nasa.gov/directorates/) - [Organizations](https://www.nasa.gov/organization/) - [People of NASA](https://www.nasa.gov/people-of-nasa/) - [Careers](https://www.nasa.gov/careers/) - [Internships](https://www.nasa.gov/learning-resources/internship-programs/) - [Our History](https://www.nasa.gov/history/) - [Doing Business with NASA](https://www.nasa.gov/doing-business-with-nasa/) - [Get Involved](https://www.nasa.gov/get-involved/) - [Contact](https://www.nasa.gov/contact/) [### NASA en Español](https://www.nasa.gov/es/) - [Ciencia](https://ciencia.nasa.gov/) - [Aeronáutica](https://www.nasa.gov/nasa-en-espanol/aeronautica-en-espanol/) - [Ciencias Terrestres](https://ciencia.nasa.gov/tierra/) - [Sistema Solar](https://ciencia.nasa.gov/sistema-solar) - [Universo](https://ciencia.nasa.gov/universo) [### News & Events](https://www.nasa.gov/news/) - [News Releases](https://www.nasa.gov/2026-news-releases/) - [Recently Published](https://www.nasa.gov/news/recently-published/) - [Video Series on NASA+](https://plus.nasa.gov/series/) - [Podcasts & Audio](https://www.nasa.gov/podcasts-and-audio/) - [Blogs](https://www.nasa.gov/nasa-blogs/) - [Newsletters](https://www.nasa.gov/newsletters/) - [Social Media](https://www.nasa.gov/social-media/) - [Media Resources](https://www.nasa.gov/news/media-contacts/) - [Events](https://www.nasa.gov/events) - [Upcoming Launches & Landings](https://www.nasa.gov/event-type/launch-schedule/) - [Virtual Guest Program](https://www.nasa.gov/nasa-virtual-guest-program/) [### Multimedia](https://www.nasa.gov/multimedia/) - [NASA+](https://plus.nasa.gov/) - [Images](https://www.nasa.gov/images/) - [NASA Live](https://www.nasa.gov/live) - [NASA Apps](https://www.nasa.gov/apps/) - [Podcasts](https://www.nasa.gov/podcasts/) - [Image of the Day](https://www.nasa.gov/image-of-the-day/) - [e-Books](https://www.nasa.gov/ebooks/) - [3D Resources](https://science.nasa.gov/3d-resources/) - [Interactives](https://www.nasa.gov/interactives/) - [STEM Multimedia](https://www.nasa.gov/learning-resources/search/?terms=8058%2C8059%2C8061%2C8062%2C8068) - [NASA Brand & Usage Guidelines](https://www.nasa.gov/nasa-brand-center/) ### Featured[  6 min read ### NASA’s Webb Discovers Hidden Planet in Famous Star System article 2 days ago ](https://science.nasa.gov/missions/webb/nasas-webb-discovers-hidden-planet-in-famous-star-system/)[  5 min read ### Utah Helicopter Flights Test NASA’s DAVINCI Mission to Venus article 3 days ago ](https://science.nasa.gov/blogs/planetary-expeditions/2026/07/14/utah-helicopter-flights-test-nasas-davinci-mission-to-venus/)[  6 min read ### NASA’s Roman Telescope Will Spot Distant Black Holes That Shred Stars article 3 days ago ](https://www.nasa.gov/missions/roman-space-telescope/nasas-roman-telescope-will-spot-distant-black-holes-that-shred-stars/) ### Highlights[  2 min read ### NASA Seeks Industry Input on Second Phase of Commercial Space Stations article 2 weeks ago ](https://www.nasa.gov/humans-in-space/commercial-space/nasa-seeks-industry-input-on-second-phase-of-commercial-space-stations/)[  3 min read ### NASA Seeks Volunteers for New Yearlong Simulated Moon, Mars Mission article 2 weeks ago ](https://www.nasa.gov/humans-in-space/nasa-seeks-volunteers-for-new-yearlong-simulated-moon-mars-mission/)[  5 min read ### Expedition 73 Crew Reflects on Science, Teamwork, and Life in Orbit article 3 weeks ago ](https://www.nasa.gov/centers-and-facilities/johnson/expedition-73-crew-reflects-on-science-teamwork-and-life-in-orbit/) ### Highlights[  3 min read ### A Tide-Fueled Trove of Biodiversity in Guinea-Bissau article 5 hours ago ](https://science.nasa.gov/earth/earth-observatory/a-tide-fueled-trove-of-biodiversity-in-guinea-bissau/)[  1 min read ### Key Aqua Project Personnel article 14 hours ago ](https://science.nasa.gov/mission/key-aqua-project-personnel/)[  3 min read ### Ontario Wildfire Smoke Moves East article 1 day ago ](https://science.nasa.gov/earth/earth-observatory/ontario-wildfire-smoke-moves-east/) ### Highlights[  5 min read ### NASA Study Finds Near-Earth Asteroid Is Actually Comet article 14 hours ago ](https://www.nasa.gov/solar-system/comets/nasa-study-finds-near-earth-asteroid-is-actually-comet/)[  6 min read ### NASA Study of Pristine Meteorite Adds to Story of Ancient Asteroids article 2 days ago ](https://science.nasa.gov/science-research/astromaterials/nasa-study-of-pristine-meteorite-adds-to-story-of-ancient-asteroids/)[  5 min read ### NASA’s Perseverance Rover Reads Record of Ancient Mars Impacts article 2 days ago ](https://www.nasa.gov/solar-system/planets/mars/nasas-perseverance-rover-reads-record-of-ancient-mars-impacts/) ### Featured[  6 min read ### NASA’s Webb Discovers Hidden Planet in Famous Star System article 2 days ago ](https://science.nasa.gov/missions/webb/nasas-webb-discovers-hidden-planet-in-famous-star-system/)[  6 min read ### NASA’s Roman Telescope Will Spot Distant Black Holes That Shred Stars article 3 days ago ](https://www.nasa.gov/missions/roman-space-telescope/nasas-roman-telescope-will-spot-distant-black-holes-that-shred-stars/)[  5 min read ### NASA’s Hubble Discovers First of Star Cluster’s Missing Black Holes article 4 days ago ](https://science.nasa.gov/missions/hubble/nasas-hubble-discovers-first-of-star-clusters-missing-black-holes/) ### Highlights[  5 min read ### NASA Study Finds Near-Earth Asteroid Is Actually Comet article 14 hours ago ](https://www.nasa.gov/solar-system/comets/nasa-study-finds-near-earth-asteroid-is-actually-comet/)[  6 min read ### NASA Study of Pristine Meteorite Adds to Story of Ancient Asteroids article 2 days ago ](https://science.nasa.gov/science-research/astromaterials/nasa-study-of-pristine-meteorite-adds-to-story-of-ancient-asteroids/)[  3 min read ### Viking Project article 2 days ago ](https://science.nasa.gov/astrobiology/missions/viking-project/) ### Highlights[  4 min read ### NASA Uses Subscale Aircraft to Accelerate Flight Innovation article 1 day ago ](https://www.nasa.gov/centers-and-facilities/armstrong/nasa-uses-subscale-aircraft-to-accelerate-flight-innovation/)[  5 min read ### SkyFall article 3 days ago ](https://science.nasa.gov/mission/skyfall/)[  3 min read ### NASA Study Points to Smoother Air Taxi Rides article 3 days ago ](https://www.nasa.gov/centers-and-facilities/armstrong/nasa-study-points-to-smoother-air-taxi-rides/) ### Highlights[  3 min read ### Ontario Wildfire Smoke Moves East article 1 day ago ](https://science.nasa.gov/earth/earth-observatory/ontario-wildfire-smoke-moves-east/)[  2 min read ### Space Storm Solar Sail Sentinel (S5) article 3 days ago ](https://www.nasa.gov/space-storm-solar-sail-sentinel-s5/)[  3 min read ### Super Typhoon Bavi article 1 week ago ](https://science.nasa.gov/earth/earth-observatory/super-typhoon-bavi/) ### Featured [  4 min read ### Space Out This Summer with Variety of NASA STEM Activities article 2 months ago ](https://www.nasa.gov/learning-resources/space-out-this-summer-with-variety-of-nasa-stem-activities/) ### Featured[  3 min read ### NASA Study Points to Smoother Air Taxi Rides article 3 days ago ](https://www.nasa.gov/centers-and-facilities/armstrong/nasa-study-points-to-smoother-air-taxi-rides/)[  3 min read ### NASA Seeks Volunteers for New Yearlong Simulated Moon, Mars Mission article 2 weeks ago ](https://www.nasa.gov/humans-in-space/nasa-seeks-volunteers-for-new-yearlong-simulated-moon-mars-mission/)[  7 min read ### How NASA’s Artemis III Lander Test Will Pave Way for Moon Landings article 2 days ago ](https://www.nasa.gov/directorates/esdmd/artemis-campaign-development-division/human-landing-system-program/how-nasas-artemis-iii-lander-test-will-pave-way-for-moon-landings/) ### Highlights[  11 min read ### La NASA anuncia la cobertura de la misión lunar Artemis II article 4 months ago ](https://www.nasa.gov/es/la-nasa-anuncia-la-cobertura-de-la-mision-lunar-artemis-ii/)[  15 min read ### Agenda diaria de la misión a la Luna de Artemis II de la NASA article 4 months ago ](https://www.nasa.gov/es/agenda-diaria-de-la-mision-a-la-luna-de-artemis-ii-de-la-nasa/)[  6 min read ### La NASA refuerza Artemis: añade una misión y perfecciona su arquitectura general article 5 months ago ](https://www.nasa.gov/humans-in-space/astronauts/la-nasa-refuerza-artemis-anade-una-mision-y-perfecciona-su-arquitectura-general/) ## Spotting Distant Black Holes New research suggests NASA’s Nancy Grace Roman Space Telescope will be able to detect supermassive black holes, helping scientists study how the giant black holes at galaxy centers form and grow over time. [Roman Telescope](https://www.nasa.gov/missions/roman-space-telescope/nasas-roman-telescope-will-spot-distant-black-holes-that-shred-stars/) ### timeline[Mission Updates](https://science.nasa.gov/blogs/roman/) ### observatory[Mission Instruments](https://science.nasa.gov/mission/roman-space-telescope/roman-observatory/) ### exploration[Mission Science](https://science.nasa.gov/mission/roman-space-telescope/science/)   ## Featured News [Recently Published](https://www.nasa.gov/news/recently-published/) [ Article 6 Min Read NASA’s Webb Discovers Hidden Planet in Famous Star System  ](https://science.nasa.gov/missions/webb/nasas-webb-discovers-hidden-planet-in-famous-star-system/) [ Article 3 Min Read Ontario Wildfire Smoke Moves East  ](https://science.nasa.gov/earth/earth-observatory/ontario-wildfire-smoke-moves-east/) [ Article 5 Min Read NASA’s Perseverance Rover Reads Record of Ancient Mars Impacts  ](https://www.nasa.gov/solar-system/planets/mars/nasas-perseverance-rover-reads-record-of-ancient-mars-impacts/)[ Article 7 Min Read How NASA’s Artemis III Lander Test Will Pave Way for Moon Landings  ](https://www.nasa.gov/directorates/esdmd/artemis-campaign-development-division/human-landing-system-program/how-nasas-artemis-iii-lander-test-will-pave-way-for-moon-landings/) [  2 Min Read Telescope Milestone: Teams Check Out NASA Roman Solar Panels Blog ](https://science.nasa.gov/blogs/roman/2026/07/16/telescope-milestone-teams-check-out-nasa-roman-solar-panels/)[  2 Min Read Spacecraft Commissioning On Track for Mission to Boost NASA’s Swift Blog ](https://science.nasa.gov/blogs/swift/2026/07/15/spacecraft-commissioning-on-track-for-mission-to-boost-nasas-swift/)[  6 Min Read NASA Study of Pristine Meteorite Adds to Story of Ancient Asteroids Article ](https://science.nasa.gov/science-research/astromaterials/nasa-study-of-pristine-meteorite-adds-to-story-of-ancient-asteroids/)[  3 Min Read What’s Up: July 2026 Skywatching Tips from NASA Article ](https://science.nasa.gov/solar-system/whats-up-july-2026-skywatching-tips-from-nasa/) ## Dual Personality New research led by scientists at NASA’s Jet Propulsion Laboratory in Southern California has revealed the identity of a puzzling near-Earth object by precisely tracking its motion through space. [Learn More about Dual Personality](https://www.nasa.gov/solar-system/comets/nasa-study-finds-near-earth-asteroid-is-actually-comet/)  ## Solar System Exploration [Discover More](https://science.nasa.gov/solar-system/) [ ### Asteroids, Comets & Meteors  ](https://science.nasa.gov/asteroids-comets-meteors/)[ ### Planetary Defense at NASA  ](https://science.nasa.gov/planetary-defense/)[ ### Science Missions  ](https://science.nasa.gov/science-missions/)[ ### Eyes  ](https://science.nasa.gov/eyes/) ### Today## Image Of The Day Young Galaxy Cluster In the Picture of the Month from the James Webb Space Telescope, we are taken on a visit to a building site of significant scale. The project is a galaxy cluster named MACS J0553.4-3342, located in the constellation Columba (the Dove). [Browse Image Archive](https://www.nasa.gov/image-of-the-day/) ### Today## Image Of The Day [  ](https://www.nasa.gov/image-detail/55380623885-a00df544bb-o/)[](https://www.nasa.gov/wp-content/uploads/2026/07/55380623885-a00df544bb-o.jpg) [View full image page](https://www.nasa.gov/image-detail/55380623885-a00df544bb-o/) ## More NASA Images [    ### Great Observatories: Hubble Space Telescope Gallery 422 Images ](https://www.nasa.gov/gallery/hubble/)[    ### Great Observatories: James Webb Space Telescope Gallery 39 Images ](https://www.nasa.gov/gallery/james-webb-space-telescope/)[    ### Great Observatories: Chandra X-ray Observatory Gallery 24 Images ](https://www.nasa.gov/gallery/great-observatories-chandra-x-ray-observatory/) ## Explore the Universe from your Inbox Stay up-to-date on the latest news from NASA–from Earth to the Moon, the Solar System and beyond. We will never share your email address. [Privacy Policy](https://www.nasa.gov/privacy/) [Sign Up](https://lp.constantcontactpages.com/sl/7ThAX6O/signup)  ### Freedom 250 ## NASA Celebrates America’s 250th Birthday Our spirit of adventure and innovation will raise our nation to new heights. From the earliest days of exploration, to the first steps on the Moon and the missions shaping our future, NASA represents the spirit of discovery that defines our nation. As the United States approaches its semiquincentennial, Freedom 250 highlights how innovation, courage, and scientific leadership have carried America forward — and how NASA continues to expand the frontier for the next generation. [Learn More about NASA Celebrates America’s 250th Birthday](https://www.nasa.gov/freedom250/)  From left: NASA astronauts Harrison “Jack” Schmitt, Reid Wiseman, Victor Glover, and Christina Koch with CSA (Canadian Space Agency) astronaut Jeremy Hansen during the “Salute to America” event on July 4, 2026, on the National Mall in Washington, D.C. NASA/Keegan Barber ## More Topics from NASA [ ### Missions  ](https://www.nasa.gov/nasa-missions/)[ ### Humans In Space  ](https://www.nasa.gov/humans-in-space/)[ ### Earth  ](https://science.nasa.gov/earth/)[ ### Our Solar System  ](https://science.nasa.gov/solar-system/overview/)[ ### Universe  ](https://science.nasa.gov/universe/)[ ### Science Missions  ](https://science.nasa.gov/science-missions/)[ ### Aeronautics  ](https://www.nasa.gov/aeronautics/)[ ### Technology  ](https://www.nasa.gov/technology/) ## Was this page helpful? Δ Was this page helpful? Yes No ×
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"markdown": "### Freedom 250\n\n## NASA Celebrates America’s 250th Birthday\n\nOur spirit of adventure and innovation will raise our nation to new heights.\n\nFrom the earliest days of exploration, to the first steps on the Moon and the missions shaping our future, NASA represents the spirit of discovery that defines our nation. As the United States approaches its semiquincentennial, Freedom 250 highlights how innovation, courage, and scientific leadership have carried America forward — and how NASA continues to expand the frontier for the next generation.\n\n[Learn More about NASA Celebrates America’s 250th Birthday](https://www.nasa.gov/freedom250/)\n",
"fullPageMarkdown": "NASA\n\n[](https://www.nasa.gov/)\n\n- Explore\n\nSearch\n\n[](https://www.nasa.gov/)\n\nSearch\n\n## Suggested Searches\n\n- [Climate Change](https://www.nasa.gov/?search=Climate%20Change)\n- [Artemis](https://www.nasa.gov/?search=Artemis)\n- [Expedition 64](https://www.nasa.gov/?search=Expedition%2064)\n- [Mars perseverance](https://www.nasa.gov/?search=Mars%20perseverance)\n- [SpaceX Crew-2](https://www.nasa.gov/?search=SpaceX%20Crew-2)\n- [International Space Station](https://www.nasa.gov/?search=International%20Space%20Station)\n- [View All Topics A-Z](https://www.nasa.gov/a-to-z-topics-listing/)\n\n- [Home](https://www.nasa.gov/)\n- [Missions](https://www.nasa.gov/nasa-missions/)\n- [Humans in Space](https://www.nasa.gov/humans-in-space/)\n- [Earth](https://science.nasa.gov/earth/)\n- [The Solar System](https://science.nasa.gov/solar-system/)\n- [The Universe](https://science.nasa.gov/universe/)\n- [Science](https://science.nasa.gov/)\n- [Aeronautics](https://www.nasa.gov/aeronautics/)\n- [Technology](https://www.nasa.gov/technology/)\n- [Learning Resources](https://www.nasa.gov/learning-resources/)\n- [About NASA](https://www.nasa.gov/about/)\n- [Español](https://www.nasa.gov/es/)\n\n---\n\n- [News & Events](https://www.nasa.gov/#)\n- [Multimedia](https://www.nasa.gov/#)\n- [NASA+](https://plus.nasa.gov/)\n\n### Featured\n\n[\n\n\n\n7 min read\n\n### How NASA’s Artemis III Lander Test Will Pave Way for Moon Landings\n\narticle2 days ago\n\n](https://www.nasa.gov/directorates/esdmd/artemis-campaign-development-division/human-landing-system-program/how-nasas-artemis-iii-lander-test-will-pave-way-for-moon-landings/)[\n\n\n\n5 min read\n\n### NASA’s Perseverance Rover Reads Record of Ancient Mars Impacts\n\narticle2 days ago\n\n](https://www.nasa.gov/solar-system/planets/mars/nasas-perseverance-rover-reads-record-of-ancient-mars-impacts/)[\n\n\n\n3 min read\n\n### What’s Up: July 2026 Skywatching Tips from NASA\n\narticle2 weeks ago\n\n](https://science.nasa.gov/solar-system/whats-up-july-2026-skywatching-tips-from-nasa/)\n\nBack\n\n---\n\n[### Missions](https://www.nasa.gov/nasa-missions/)\n\n- [Search All NASA Missions](https://www.nasa.gov/missions/)\n- [A to Z List of Missions](https://www.nasa.gov/a-to-z-of-nasa-missions/)\n- [Upcoming Launches and Landings](https://www.nasa.gov/events/)\n- [Spaceships and Rockets](https://www.nasa.gov/humans-in-space/spaceships-and-rockets/)\n- [Communicating with Missions](https://www.nasa.gov/communicating-with-missions/)\n- [Artemis](https://www.nasa.gov/humans-in-space/artemis/)\n- [James Webb Space Telescope](https://science.nasa.gov/mission/webb/)\n- [Hubble Space Telescope](https://science.nasa.gov/mission/hubble/)\n- [International Space Station](https://www.nasa.gov/international-space-station/)\n- [OSIRIS-Rex](https://science.nasa.gov/mission/osiris-rex/)\n\n[### Humans in Space](https://www.nasa.gov/humans-in-space/)\n\n- [Why Go to Space](https://www.nasa.gov/humans-in-space/why-go-to-space/)\n- [Astronauts](https://www.nasa.gov/humans-in-space/astronauts/)\n- [Commercial Space](https://www.nasa.gov/humans-in-space/commercial-space/)\n- [Destinations](https://www.nasa.gov/humans-in-space/destinations/)\n- [Spaceships and Rockets](https://www.nasa.gov/humans-in-space/spaceships-and-rockets/)\n- [Living in Space](https://www.nasa.gov/humans-in-space/living-in-space/)\n\n[### Earth](https://science.nasa.gov/earth/)\n\n- [Explore Earth Science](https://science.nasa.gov/earth/explore)\n- [Climate Change](https://science.nasa.gov/climate-change)\n- [Earth, Our Planet](https://science.nasa.gov/earth/facts)\n- [Earth Science in Action](https://science.nasa.gov/earth/in-action)\n- [Earth Multimedia](https://science.nasa.gov/earth/multimedia)\n- [Earth Data](https://science.nasa.gov/earth/data)\n- [Earth Science Researchers](https://science.nasa.gov/earth-science)\n\n[### The Solar System](https://science.nasa.gov/solar-system/)\n\n- [The Sun](https://science.nasa.gov/sun/)\n- [Mercury](https://science.nasa.gov/mercury/)\n- [Venus](https://science.nasa.gov/venus)\n- [Earth](https://science.nasa.gov/earth/facts/)\n- [The Moon](https://science.nasa.gov/moon/)\n- [Mars](https://science.nasa.gov/mars)\n- [Jupiter](https://science.nasa.gov/jupiter)\n- [Saturn](https://science.nasa.gov/saturn)\n- [Uranus](https://science.nasa.gov/uranus/)\n- [Neptune](https://science.nasa.gov/neptune/)\n- [Pluto & Dwarf Planets](https://science.nasa.gov/dwarf-planets/)\n- [Asteroids, Comets & Meteors](https://science.nasa.gov/asteroids-comets-meteors/)\n- [The Kuiper Belt](https://science.nasa.gov/solar-system/kuiper-belt/)\n- [The Oort Cloud](https://science.nasa.gov/solar-system/oort-cloud/)\n- [Skywatching](https://science.nasa.gov/skywatching/)\n\n[### The Universe](https://science.nasa.gov/universe/)\n\n- [Exoplanets](https://science.nasa.gov/exoplanets/)\n- [The Search for Life in the Universe](https://science.nasa.gov/universe/search-for-life/)\n- [Stars](https://science.nasa.gov/universe/stars/)\n- [Galaxies](https://science.nasa.gov/universe/galaxies/)\n- [Black Holes](https://science.nasa.gov/universe/black-holes/)\n- [The Big Bang](https://science.nasa.gov/universe/the-big-bang/)\n- [Dark Energy](https://science.nasa.gov/dark-energy)\n- [Dark Matter](https://science.nasa.gov/dark-matter)\n\n[### Science](https://science.nasa.gov/)\n\n- [Earth Science](https://science.nasa.gov/earth-science/)\n- [Planetary Science](https://science.nasa.gov/planetary-science/)\n- [Astrophysics & Space Science](https://science.nasa.gov/astrophysics/)\n- [The Sun & Heliophysics](https://science.nasa.gov/heliophysics/)\n- [Biological & Physical Sciences](https://science.nasa.gov/biological-physical)\n- [Lunar Science](https://science.nasa.gov/lunar-science)\n- [Citizen Science](https://science.nasa.gov/citizen-science/)\n- [Astromaterials](https://science.nasa.gov/astromaterials/)\n- [Aeronautics Research](https://www.nasa.gov/aeronautics-research/)\n- [Human Space Travel Research](https://www.nasa.gov/human-space-travel-research/)\n\n[### Aeronautics](https://www.nasa.gov/aeronautics/)\n\n- [Science in the Air](https://www.nasa.gov/aeronautics/science-in-the-air/)\n- [NASA Aircraft](https://www.nasa.gov/aeronautics/aircraft/)\n- [Flight Research Innovation](https://www.nasa.gov/aeronautics/flight-innovation/)\n- [Supersonic Flight](https://www.nasa.gov/aeronautics/supersonic-flight/)\n- [Air Traffic Solutions](https://www.nasa.gov/aeronautics/air-traffic-solutions/)\n- [Green Aviation Tech](https://www.nasa.gov/aeronautics/ultra-efficient-aviation/)\n- [Drones & You](https://www.nasa.gov/aeronautics/drones-and-you/)\n\n[### Technology](https://www.nasa.gov/technology/)\n\n- [Technology Transfer & Spinoffs](https://www.nasa.gov/space-technology-mission-directorate/technology-transfer-spinoffs/)\n- [Space Travel](https://www.nasa.gov/space-travel-technology/)\n- [Living in Space](https://www.nasa.gov/space-living-technology/)\n- [Lunar Surface Technology](https://www.nasa.gov/lunar-surface-technology/)\n- [Manufacturing and Materials](https://www.nasa.gov/manufacturing-and-materials/)\n- [Robotics](https://www.nasa.gov/robotics/)\n- [Science Instruments](https://www.nasa.gov/science-instruments/)\n- [Computing](https://www.nasa.gov/computing/)\n\n[### Learning Resources](https://www.nasa.gov/learning-resources/)\n\n- [For Kids and Students](https://www.nasa.gov/learning-resources/for-kids-and-students/)\n- [For Educators](https://www.nasa.gov/learning-resources/for-educators/)\n- [For Colleges and Universities](https://www.nasa.gov/learning-resources/colleges-and-universities/)\n- [For Professionals](https://www.nasa.gov/learning-resources/for-professionals/)\n- [Science for Everyone](https://science.nasa.gov/for-everyone/)\n- [Requests for Exhibits, Artifacts, Speakers & Flyovers](https://www.nasa.gov/requests-for-exhibits-artifacts-or-speakers/)\n- [STEM Engagement at NASA](https://www.nasa.gov/learning-resources/stem-engagement/)\n\n[### About NASA](https://www.nasa.gov/about/)\n\n- [NASA's Impacts](https://www.nasa.gov/nasa-impact/)\n- [Centers and Facilities](https://www.nasa.gov/centers-and-facilities/)\n- [Directorates](https://www.nasa.gov/directorates/)\n- [Organizations](https://www.nasa.gov/organization/)\n- [People of NASA](https://www.nasa.gov/people-of-nasa/)\n- [Careers](https://www.nasa.gov/careers/)\n- [Internships](https://www.nasa.gov/learning-resources/internship-programs/)\n- [Our History](https://www.nasa.gov/history/)\n- [Doing Business with NASA](https://www.nasa.gov/doing-business-with-nasa/)\n- [Get Involved](https://www.nasa.gov/get-involved/)\n- [Contact](https://www.nasa.gov/contact/)\n\n[### NASA en Español](https://www.nasa.gov/es/)\n\n- [Ciencia](https://ciencia.nasa.gov/)\n- [Aeronáutica](https://www.nasa.gov/nasa-en-espanol/aeronautica-en-espanol/)\n- [Ciencias Terrestres](https://ciencia.nasa.gov/tierra/)\n- [Sistema Solar](https://ciencia.nasa.gov/sistema-solar)\n- [Universo](https://ciencia.nasa.gov/universo)\n\n[### News & Events](https://www.nasa.gov/news/)\n\n- [News Releases](https://www.nasa.gov/2026-news-releases/)\n- [Recently Published](https://www.nasa.gov/news/recently-published/)\n- [Video Series on NASA+](https://plus.nasa.gov/series/)\n- [Podcasts & Audio](https://www.nasa.gov/podcasts-and-audio/)\n- [Blogs](https://www.nasa.gov/nasa-blogs/)\n- [Newsletters](https://www.nasa.gov/newsletters/)\n- [Social Media](https://www.nasa.gov/social-media/)\n- [Media Resources](https://www.nasa.gov/news/media-contacts/)\n- [Events](https://www.nasa.gov/events)\n- [Upcoming Launches & Landings](https://www.nasa.gov/event-type/launch-schedule/)\n- [Virtual Guest Program](https://www.nasa.gov/nasa-virtual-guest-program/)\n\n[### Multimedia](https://www.nasa.gov/multimedia/)\n\n- [NASA+](https://plus.nasa.gov/)\n- [Images](https://www.nasa.gov/images/)\n- [NASA Live](https://www.nasa.gov/live)\n- [NASA Apps](https://www.nasa.gov/apps/)\n- [Podcasts](https://www.nasa.gov/podcasts/)\n- [Image of the Day](https://www.nasa.gov/image-of-the-day/)\n- [e-Books](https://www.nasa.gov/ebooks/)\n- [3D Resources](https://science.nasa.gov/3d-resources/)\n- [Interactives](https://www.nasa.gov/interactives/)\n- [STEM Multimedia](https://www.nasa.gov/learning-resources/search/?terms=8058%2C8059%2C8061%2C8062%2C8068)\n- [NASA Brand & Usage Guidelines](https://www.nasa.gov/nasa-brand-center/)\n\n### Featured[\n\n\n\n6 min read\n\n### NASA’s Webb Discovers Hidden Planet in Famous Star System\n\narticle 2 days ago\n\n](https://science.nasa.gov/missions/webb/nasas-webb-discovers-hidden-planet-in-famous-star-system/)[\n\n\n\n5 min read\n\n### Utah Helicopter Flights Test NASA’s DAVINCI Mission to Venus\n\narticle 3 days ago\n\n](https://science.nasa.gov/blogs/planetary-expeditions/2026/07/14/utah-helicopter-flights-test-nasas-davinci-mission-to-venus/)[\n\n\n\n6 min read\n\n### NASA’s Roman Telescope Will Spot Distant Black Holes That Shred Stars\n\narticle 3 days ago\n\n](https://www.nasa.gov/missions/roman-space-telescope/nasas-roman-telescope-will-spot-distant-black-holes-that-shred-stars/)\n\n### Highlights[\n\n\n\n2 min read\n\n### NASA Seeks Industry Input on Second Phase of Commercial Space Stations\n\narticle 2 weeks ago\n\n](https://www.nasa.gov/humans-in-space/commercial-space/nasa-seeks-industry-input-on-second-phase-of-commercial-space-stations/)[\n\n\n\n3 min read\n\n### NASA Seeks Volunteers for New Yearlong Simulated Moon, Mars Mission\n\narticle 2 weeks ago\n\n](https://www.nasa.gov/humans-in-space/nasa-seeks-volunteers-for-new-yearlong-simulated-moon-mars-mission/)[\n\n\n\n5 min read\n\n### Expedition 73 Crew Reflects on Science, Teamwork, and Life in Orbit\n\narticle 3 weeks ago\n\n](https://www.nasa.gov/centers-and-facilities/johnson/expedition-73-crew-reflects-on-science-teamwork-and-life-in-orbit/)\n\n### Highlights[\n\n\n\n3 min read\n\n### A Tide-Fueled Trove of Biodiversity in Guinea-Bissau\n\narticle 5 hours ago\n\n](https://science.nasa.gov/earth/earth-observatory/a-tide-fueled-trove-of-biodiversity-in-guinea-bissau/)[\n\n\n\n1 min read\n\n### Key Aqua Project Personnel\n\narticle 14 hours ago\n\n](https://science.nasa.gov/mission/key-aqua-project-personnel/)[\n\n\n\n3 min read\n\n### Ontario Wildfire Smoke Moves East\n\narticle 1 day ago\n\n](https://science.nasa.gov/earth/earth-observatory/ontario-wildfire-smoke-moves-east/)\n\n### Highlights[\n\n\n\n5 min read\n\n### NASA Study Finds Near-Earth Asteroid Is Actually Comet\n\narticle 14 hours ago\n\n](https://www.nasa.gov/solar-system/comets/nasa-study-finds-near-earth-asteroid-is-actually-comet/)[\n\n\n\n6 min read\n\n### NASA Study of Pristine Meteorite Adds to Story of Ancient Asteroids\n\narticle 2 days ago\n\n](https://science.nasa.gov/science-research/astromaterials/nasa-study-of-pristine-meteorite-adds-to-story-of-ancient-asteroids/)[\n\n\n\n5 min read\n\n### NASA’s Perseverance Rover Reads Record of Ancient Mars Impacts\n\narticle 2 days ago\n\n](https://www.nasa.gov/solar-system/planets/mars/nasas-perseverance-rover-reads-record-of-ancient-mars-impacts/)\n\n### Featured[\n\n\n\n6 min read\n\n### NASA’s Webb Discovers Hidden Planet in Famous Star System\n\narticle 2 days ago\n\n](https://science.nasa.gov/missions/webb/nasas-webb-discovers-hidden-planet-in-famous-star-system/)[\n\n\n\n6 min read\n\n### NASA’s Roman Telescope Will Spot Distant Black Holes That Shred Stars\n\narticle 3 days ago\n\n](https://www.nasa.gov/missions/roman-space-telescope/nasas-roman-telescope-will-spot-distant-black-holes-that-shred-stars/)[\n\n\n\n5 min read\n\n### NASA’s Hubble Discovers First of Star Cluster’s Missing Black Holes\n\narticle 4 days ago\n\n](https://science.nasa.gov/missions/hubble/nasas-hubble-discovers-first-of-star-clusters-missing-black-holes/)\n\n### Highlights[\n\n\n\n5 min read\n\n### NASA Study Finds Near-Earth Asteroid Is Actually Comet\n\narticle 14 hours ago\n\n](https://www.nasa.gov/solar-system/comets/nasa-study-finds-near-earth-asteroid-is-actually-comet/)[\n\n\n\n6 min read\n\n### NASA Study of Pristine Meteorite Adds to Story of Ancient Asteroids\n\narticle 2 days ago\n\n](https://science.nasa.gov/science-research/astromaterials/nasa-study-of-pristine-meteorite-adds-to-story-of-ancient-asteroids/)[\n\n\n\n3 min read\n\n### Viking Project\n\narticle 2 days ago\n\n](https://science.nasa.gov/astrobiology/missions/viking-project/)\n\n### Highlights[\n\n\n\n4 min read\n\n### NASA Uses Subscale Aircraft to Accelerate Flight Innovation\n\narticle 1 day ago\n\n](https://www.nasa.gov/centers-and-facilities/armstrong/nasa-uses-subscale-aircraft-to-accelerate-flight-innovation/)[\n\n\n\n5 min read\n\n### SkyFall\n\narticle 3 days ago\n\n](https://science.nasa.gov/mission/skyfall/)[\n\n\n\n3 min read\n\n### NASA Study Points to Smoother Air Taxi Rides\n\narticle 3 days ago\n\n](https://www.nasa.gov/centers-and-facilities/armstrong/nasa-study-points-to-smoother-air-taxi-rides/)\n\n### Highlights[\n\n\n\n3 min read\n\n### Ontario Wildfire Smoke Moves East\n\narticle 1 day ago\n\n](https://science.nasa.gov/earth/earth-observatory/ontario-wildfire-smoke-moves-east/)[\n\n\n\n2 min read\n\n### Space Storm Solar Sail Sentinel (S5)\n\narticle 3 days ago\n\n](https://www.nasa.gov/space-storm-solar-sail-sentinel-s5/)[\n\n\n\n3 min read\n\n### Super Typhoon Bavi\n\narticle 1 week ago\n\n](https://science.nasa.gov/earth/earth-observatory/super-typhoon-bavi/)\n\n### Featured\n\n[\n\n\n\n4 min read\n\n### Space Out This Summer with Variety of NASA STEM Activities\n\narticle 2 months ago\n\n](https://www.nasa.gov/learning-resources/space-out-this-summer-with-variety-of-nasa-stem-activities/)\n\n### Featured[\n\n\n\n3 min read\n\n### NASA Study Points to Smoother Air Taxi Rides\n\narticle 3 days ago\n\n](https://www.nasa.gov/centers-and-facilities/armstrong/nasa-study-points-to-smoother-air-taxi-rides/)[\n\n\n\n3 min read\n\n### NASA Seeks Volunteers for New Yearlong Simulated Moon, Mars Mission\n\narticle 2 weeks ago\n\n](https://www.nasa.gov/humans-in-space/nasa-seeks-volunteers-for-new-yearlong-simulated-moon-mars-mission/)[\n\n\n\n7 min read\n\n### How NASA’s Artemis III Lander Test Will Pave Way for Moon Landings\n\narticle 2 days ago\n\n](https://www.nasa.gov/directorates/esdmd/artemis-campaign-development-division/human-landing-system-program/how-nasas-artemis-iii-lander-test-will-pave-way-for-moon-landings/)\n\n### Highlights[\n\n\n\n11 min read\n\n### La NASA anuncia la cobertura de la misión lunar Artemis II\n\narticle 4 months ago\n\n](https://www.nasa.gov/es/la-nasa-anuncia-la-cobertura-de-la-mision-lunar-artemis-ii/)[\n\n\n\n15 min read\n\n### Agenda diaria de la misión a la Luna de Artemis II de la NASA\n\narticle 4 months ago\n\n](https://www.nasa.gov/es/agenda-diaria-de-la-mision-a-la-luna-de-artemis-ii-de-la-nasa/)[\n\n\n\n6 min read\n\n### La NASA refuerza Artemis: añade una misión y perfecciona su arquitectura general\n\narticle 5 months ago\n\n](https://www.nasa.gov/humans-in-space/astronauts/la-nasa-refuerza-artemis-anade-una-mision-y-perfecciona-su-arquitectura-general/)\n\n## Spotting Distant Black Holes\n\nNew research suggests NASA’s Nancy Grace Roman Space Telescope will be able to detect supermassive black holes, helping scientists study how the giant black holes at galaxy centers form and grow over time.\n\n[Roman Telescope](https://www.nasa.gov/missions/roman-space-telescope/nasas-roman-telescope-will-spot-distant-black-holes-that-shred-stars/)\n\n### timeline[Mission Updates](https://science.nasa.gov/blogs/roman/)\n\n### observatory[Mission Instruments](https://science.nasa.gov/mission/roman-space-telescope/roman-observatory/)\n\n### exploration[Mission Science](https://science.nasa.gov/mission/roman-space-telescope/science/)\n\n\n\n\n\n## Featured News\n\n[Recently Published](https://www.nasa.gov/news/recently-published/)\n\n[\n\nArticle\n\n6 Min Read\n\nNASA’s Webb Discovers Hidden Planet in Famous Star System\n\n\n\n](https://science.nasa.gov/missions/webb/nasas-webb-discovers-hidden-planet-in-famous-star-system/)\n\n[\n\nArticle\n\n3 Min Read\n\nOntario Wildfire Smoke Moves East\n\n\n\n](https://science.nasa.gov/earth/earth-observatory/ontario-wildfire-smoke-moves-east/)\n\n[\n\nArticle\n\n5 Min Read\n\nNASA’s Perseverance Rover Reads Record of Ancient Mars Impacts\n\n\n\n](https://www.nasa.gov/solar-system/planets/mars/nasas-perseverance-rover-reads-record-of-ancient-mars-impacts/)[\n\nArticle\n\n7 Min Read\n\nHow NASA’s Artemis III Lander Test Will Pave Way for Moon Landings\n\n\n\n](https://www.nasa.gov/directorates/esdmd/artemis-campaign-development-division/human-landing-system-program/how-nasas-artemis-iii-lander-test-will-pave-way-for-moon-landings/)\n\n[\n\n\n\n2 Min Read\n\nTelescope Milestone: Teams Check Out NASA Roman Solar Panels\n\nBlog\n\n](https://science.nasa.gov/blogs/roman/2026/07/16/telescope-milestone-teams-check-out-nasa-roman-solar-panels/)[\n\n\n\n2 Min Read\n\nSpacecraft Commissioning On Track for Mission to Boost NASA’s Swift\n\nBlog\n\n](https://science.nasa.gov/blogs/swift/2026/07/15/spacecraft-commissioning-on-track-for-mission-to-boost-nasas-swift/)[\n\n\n\n6 Min Read\n\nNASA Study of Pristine Meteorite Adds to Story of Ancient Asteroids\n\nArticle\n\n](https://science.nasa.gov/science-research/astromaterials/nasa-study-of-pristine-meteorite-adds-to-story-of-ancient-asteroids/)[\n\n\n\n3 Min Read\n\nWhat’s Up: July 2026 Skywatching Tips from NASA\n\nArticle\n\n](https://science.nasa.gov/solar-system/whats-up-july-2026-skywatching-tips-from-nasa/)\n\n## Dual Personality\n\nNew research led by scientists at NASA’s Jet Propulsion Laboratory in Southern California has revealed the identity of a puzzling near-Earth object by precisely tracking its motion through space.\n\n[Learn More about Dual Personality](https://www.nasa.gov/solar-system/comets/nasa-study-finds-near-earth-asteroid-is-actually-comet/)\n\n\n\n## Solar System Exploration\n\n[Discover More](https://science.nasa.gov/solar-system/)\n\n[\n\n### Asteroids, Comets & Meteors\n\n\n\n](https://science.nasa.gov/asteroids-comets-meteors/)[\n\n### Planetary Defense at NASA\n\n\n\n](https://science.nasa.gov/planetary-defense/)[\n\n### Science Missions\n\n\n\n](https://science.nasa.gov/science-missions/)[\n\n### Eyes\n\n\n\n](https://science.nasa.gov/eyes/)\n\n### Today## Image Of The Day\n\nYoung Galaxy Cluster\n\nIn the Picture of the Month from the James Webb Space Telescope, we are taken on a visit to a building site of significant scale. The project is a galaxy cluster named MACS J0553.4-3342, located in the constellation Columba (the Dove).\n\n[Browse Image Archive](https://www.nasa.gov/image-of-the-day/)\n\n### Today## Image Of The Day\n\n[\n\n\n\n](https://www.nasa.gov/image-detail/55380623885-a00df544bb-o/)[](https://www.nasa.gov/wp-content/uploads/2026/07/55380623885-a00df544bb-o.jpg)\n\n[View full image page](https://www.nasa.gov/image-detail/55380623885-a00df544bb-o/)\n\n## More NASA Images\n\n[\n\n\n\n\n\n\n\n### Great Observatories: Hubble Space Telescope Gallery\n\n422 Images\n\n](https://www.nasa.gov/gallery/hubble/)[\n\n\n\n\n\n\n\n### Great Observatories: James Webb Space Telescope Gallery\n\n39 Images\n\n](https://www.nasa.gov/gallery/james-webb-space-telescope/)[\n\n\n\n\n\n\n\n### Great Observatories: Chandra X-ray Observatory Gallery\n\n24 Images\n\n](https://www.nasa.gov/gallery/great-observatories-chandra-x-ray-observatory/)\n\n## Explore the Universe from your Inbox\n\nStay up-to-date on the latest news from NASA–from Earth to the Moon, the Solar System and beyond.\n\nWe will never share your email address.\n\n[Privacy Policy](https://www.nasa.gov/privacy/)\n\n[Sign Up](https://lp.constantcontactpages.com/sl/7ThAX6O/signup)\n\n\n\n### Freedom 250\n\n## NASA Celebrates America’s 250th Birthday\n\nOur spirit of adventure and innovation will raise our nation to new heights.\n\nFrom the earliest days of exploration, to the first steps on the Moon and the missions shaping our future, NASA represents the spirit of discovery that defines our nation. As the United States approaches its semiquincentennial, Freedom 250 highlights how innovation, courage, and scientific leadership have carried America forward — and how NASA continues to expand the frontier for the next generation.\n\n[Learn More about NASA Celebrates America’s 250th Birthday](https://www.nasa.gov/freedom250/)\n\n\n\nFrom left: NASA astronauts Harrison “Jack” Schmitt, Reid Wiseman, Victor Glover, and Christina Koch with CSA (Canadian Space Agency) astronaut Jeremy Hansen during the “Salute to America” event on July 4, 2026, on the National Mall in Washington, D.C.\n\nNASA/Keegan Barber\n\n## More Topics from NASA\n\n[\n\n### Missions\n\n\n\n](https://www.nasa.gov/nasa-missions/)[\n\n### Humans In Space\n\n\n\n](https://www.nasa.gov/humans-in-space/)[\n\n### Earth\n\n\n\n](https://science.nasa.gov/earth/)[\n\n### Our Solar System\n\n\n\n](https://science.nasa.gov/solar-system/overview/)[\n\n### Universe\n\n\n\n](https://science.nasa.gov/universe/)[\n\n### Science Missions\n\n\n\n](https://science.nasa.gov/science-missions/)[\n\n### Aeronautics\n\n\n\n](https://www.nasa.gov/aeronautics/)[\n\n### Technology\n\n\n\n](https://www.nasa.gov/technology/)\n\n## Was this page helpful?\n\n Δ\n\nWas this page helpful?\n\n Yes\n\n No\n\n×\n",
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"titleKey": "rec.improve_content_ratio.title",
"descriptionKey": "rec.improve_content_ratio.description",
"howToKey": "rec.improve_content_ratio.howto",
"effort": "moderate",
"estimatedImpact": 3,
"maxImpact": 3,
"evidence": "speculative",
"checkScore": 0,
"checkDetails": "Content ratio: 0.2% (700 content chars / 338085 HTML bytes)"
},
{
"id": "add_llms_txt",
"priority": "high",
"category": "aiDiscoverability",
"titleKey": "rec.add_llms_txt.title",
"descriptionKey": "rec.add_llms_txt.description",
"howToKey": "rec.add_llms_txt.howto",
"effort": "quick-win",
"estimatedImpact": 2.5,
"maxImpact": 2.5,
"evidence": "speculative",
"checkScore": 0,
"checkDetails": "No llms.txt found"
},
{
"id": "add_content_signals",
"priority": "high",
"category": "aiDiscoverability",
"titleKey": "rec.add_content_signals.title",
"descriptionKey": "rec.add_content_signals.description",
"howToKey": "rec.add_content_signals.howto",
"effort": "quick-win",
"estimatedImpact": 2.5,
"maxImpact": 2.5,
"evidence": "speculative",
"checkScore": 0,
"checkDetails": "No Content-Signal found (robots.txt or HTTP headers)"
},
{
"id": "add_semantic_elements",
"priority": "medium",
"category": "semanticHtml",
"titleKey": "rec.add_semantic_elements.title",
"descriptionKey": "rec.add_semantic_elements.description",
"howToKey": "rec.add_semantic_elements.howto",
"effort": "moderate",
"estimatedImpact": 2.3,
"maxImpact": 3,
"evidence": "plausible",
"checkScore": 25,
"checkDetails": "42 semantic elements, 513 divs (ratio: 8%)"
},
{
"id": "fix_heading_hierarchy",
"priority": "medium",
"category": "semanticHtml",
"titleKey": "rec.fix_heading_hierarchy.title",
"descriptionKey": "rec.fix_heading_hierarchy.description",
"howToKey": "rec.fix_heading_hierarchy.howto",
"effort": "quick-win",
"estimatedImpact": 1.3,
"maxImpact": 4.5,
"evidence": "plausible",
"checkScore": 70,
"checkDetails": "no <h1>"
},
{
"id": "remove_inline_styles",
"priority": "low",
"category": "contentEfficiency",
"titleKey": "rec.remove_inline_styles.title",
"descriptionKey": "rec.remove_inline_styles.description",
"howToKey": "rec.remove_inline_styles.howto",
"effort": "moderate",
"estimatedImpact": 0.5,
"maxImpact": 1,
"evidence": "speculative",
"checkScore": 50,
"checkDetails": "119/2529 elements with inline styles (4.7%)"
}
],
"llmsTxtPreview": "# NASA\n\n> NASA.gov brings you the latest news, images and videos from America's space agency, pioneering the future in space exploration, scientific discovery and aeronautics research.\n\n## Main\n- [NASA](https://www.nasa.gov/): NASA.gov brings you the latest news, images and videos from America's space agency, pioneering the future in space expl…\n- [About NASA's Mission](https://www.nasa.gov/about/)\n- [News Releases](https://www.nasa.gov/2026-news-releases/)\n- [Podcasts & Audio](https://www.nasa.gov/podcasts-and-audio/)\n- [Blogs](https://www.nasa.gov/nasa-blogs/)\n- [Newsletters](https://www.nasa.gov/newsletters/)\n- [Social Media](https://www.nasa.gov/social-media/)\n- [Events](https://www.nasa.gov/events)\n- [Upcoming Launches & Landings](https://www.nasa.gov/event-type/launch-schedule/)\n- [Virtual Guest Program](https://www.nasa.gov/nasa-virtual-guest-program/)\n\n## Blog\n- [News & Events](https://www.nasa.gov/news/)\n- [Recently Published](https://www.nasa.gov/news/recently-published/)\n- [Media Resources](https://www.nasa.gov/news/media-contacts/)\n- [For Media](https://www.nasa.gov/news/nasa-media-contacts/)\n\n## Support\n- [Contact NASA](https://www.nasa.gov/contact-nasa/)\n\n",
"llmsTxtExisting": null,
"emergingProtocols": {
"oauthProtectedResource": {
"exists": false,
"url": "https://www.nasa.gov/.well-known/oauth-protected-resource"
},
"oauthDiscovery": {
"exists": false,
"url": "https://www.nasa.gov/.well-known/oauth-authorization-server"
},
"mcpServerCard": {
"exists": false,
"url": "https://www.nasa.gov/.well-known/mcp/server-card.json",
"draft": true
},
"a2aAgentCard": {
"exists": false,
"url": "https://www.nasa.gov/.well-known/agent-card.json"
},
"apiCatalog": {
"exists": false,
"url": "https://www.nasa.gov/.well-known/api-catalog"
},
"agentSkills": {
"exists": false,
"url": "https://www.nasa.gov/.well-known/agent-skills/index.json",
"draft": true
},
"count": 0,
"total": 6
},
"botAccess": {
"probed": true,
"bot": "OAI-SearchBot",
"controlStatus": 200,
"botStatus": 200,
"discriminates": false,
"refusedAsBot": false,
"edge": null,
"verifiable": false,
"detail": "This origin answers OAI-SearchBot exactly as it answers any other client (200). No edge-level filtering of AI crawlers observed."
},
"snippets": [
{
"id": "add_llms_txt",
"title": "Create /llms.txt",
"description": "Upload this file to your web root. It tells AI agents what your site is about and which pages matter.",
"language": "markdown",
"code": "# NASA\n\n> NASA.gov brings you the latest news, images and videos from America's space agency, pioneering the future in space exploration, scientific discovery and aeronautics research.\n\n## Main\n- [NASA](https://www.nasa.gov/): NASA.gov brings you the latest news, images and videos from America's space agency, pioneering the future in space expl…\n- [About NASA's Mission](https://www.nasa.gov/about/)\n- [News Releases](https://www.nasa.gov/2026-news-releases/)\n- [Podcasts & Audio](https://www.nasa.gov/podcasts-and-audio/)\n- [Blogs](https://www.nasa.gov/nasa-blogs/)\n- [Newsletters](https://www.nasa.gov/newsletters/)\n- [Social Media](https://www.nasa.gov/social-media/)\n- [Events](https://www.nasa.gov/events)\n- [Upcoming Launches & Landings](https://www.nasa.gov/event-type/launch-schedule/)\n- [Virtual Guest Program](https://www.nasa.gov/nasa-virtual-guest-program/)\n\n## Blog\n- [News & Events](https://www.nasa.gov/news/)\n- [Recently Published](https://www.nasa.gov/news/recently-published/)\n- [Media Resources](https://www.nasa.gov/news/media-contacts/)\n- [For Media](https://www.nasa.gov/news/nasa-media-contacts/)\n\n## Support\n- [Contact NASA](https://www.nasa.gov/contact-nasa/)\n\n",
"filename": "/llms.txt"
},
{
"id": "fix_heading_hierarchy",
"title": "Fix heading hierarchy",
"description": "Your page has no <h1>. Every page needs exactly one <h1> as the main heading. Add it inside your <main> or <article>.",
"language": "html",
"code": "<h1>NASA</h1>",
"filename": "<main> or <article>"
},
{
"id": "add_content_signals",
"title": "Add Content-Signal directives",
"description": "Content-Signal tells AI agents how they may use your content. The canonical location is robots.txt, but you can also expose it as an HTTP header from any stack.",
"language": "txt",
"code": "User-agent: *\nContent-Signal: search=yes, ai-input=yes, ai-train=no",
"filename": "/robots.txt",
"stacks": [
{
"id": "robots",
"label": "robots.txt",
"language": "txt",
"filename": "/robots.txt",
"code": "User-agent: *\nContent-Signal: search=yes, ai-input=yes, ai-train=no"
},
{
"id": "nginx",
"label": "Nginx",
"language": "nginx",
"filename": "server block",
"code": "# Inside your server { } block:\nadd_header Content-Signal \"search=yes, ai-input=yes, ai-train=no\" always;"
},
{
"id": "apache",
"label": "Apache",
"language": "apache",
"filename": ".htaccess",
"code": "# In .htaccess (or VirtualHost):\nHeader set Content-Signal \"search=yes, ai-input=yes, ai-train=no\""
},
{
"id": "wordpress",
"label": "WordPress",
"language": "php",
"filename": "functions.php",
"code": "<?php\n// In your theme's functions.php or a small mu-plugin\nadd_action('send_headers', function () {\n header('Content-Signal: search=yes, ai-input=yes, ai-train=no');\n});\n\n// Optional: also append the directive to the dynamic robots.txt\nadd_filter('robots_txt', function ($output) {\n return $output . \"\\nContent-Signal: search=yes, ai-input=yes, ai-train=no\\n\";\n}, 10, 1);"
},
{
"id": "nextjs",
"label": "Next.js",
"language": "typescript",
"filename": "middleware.ts",
"code": "// middleware.ts (Next.js 13+ App Router or Pages Router)\nimport { NextResponse } from 'next/server';\nexport function middleware() {\n const res = NextResponse.next();\n res.headers.set(\n 'Content-Signal',\n 'search=yes, ai-input=yes, ai-train=no'\n );\n return res;\n}\nexport const config = { matcher: '/:path*' };"
},
{
"id": "cloudflare",
"label": "Cloudflare Workers",
"language": "javascript",
"filename": "worker.js",
"code": "// Cloudflare Worker that proxies your origin and adds the header\nexport default {\n async fetch(request, env, ctx) {\n const res = await fetch(request);\n const newRes = new Response(res.body, res);\n newRes.headers.set(\n 'Content-Signal',\n 'search=yes, ai-input=yes, ai-train=no'\n );\n return newRes;\n },\n};"
},
{
"id": "express",
"label": "Express / Fastify",
"language": "javascript",
"filename": "server.js",
"code": "// Express\napp.use((req, res, next) => {\n res.setHeader('Content-Signal', 'search=yes, ai-input=yes, ai-train=no');\n next();\n});\n\n// Fastify\nfastify.addHook('onSend', (request, reply, payload, done) => {\n reply.header('Content-Signal', 'search=yes, ai-input=yes, ai-train=no');\n done();\n});"
}
]
},
{
"id": "add_markdown_negotiation",
"title": "Support Markdown for Agents",
"description": "Let AI agents request a clean Markdown version of any page via content negotiation, .md alternate URLs, link tags or Link headers.",
"language": "html",
"code": "<!-- Mechanism 3: link tag advertising the .md alternate -->\n<link rel=\"alternate\" type=\"text/markdown\" href=\"/page.md\">",
"filename": "<head>",
"stacks": [
{
"id": "html",
"label": "HTML <head>",
"language": "html",
"filename": "<head>",
"code": "<!-- Mechanism 3: link tag advertising the .md alternate -->\n<link rel=\"alternate\" type=\"text/markdown\" href=\"/page.md\">"
},
{
"id": "express",
"label": "Express",
"language": "javascript",
"filename": "server.js",
"code": "// Mechanisms 1 + 4: content negotiation + Link header\napp.get('/page', (req, res) => {\n res.setHeader('Vary', 'Accept');\n res.setHeader('Link', '</page.md>; rel=\"alternate\"; type=\"text/markdown\"');\n if ((req.headers.accept || '').includes('text/markdown')) {\n res.type('text/markdown; charset=utf-8');\n return res.send(renderMarkdown('page'));\n }\n res.render('page');\n});"
},
{
"id": "fastify",
"label": "Fastify",
"language": "javascript",
"filename": "server.js",
"code": "// Mechanisms 1 + 4: content negotiation + Link header\nfastify.get('/page', async (req, reply) => {\n reply.header('Vary', 'Accept');\n reply.header('Link', '</page.md>; rel=\"alternate\"; type=\"text/markdown\"');\n if ((req.headers.accept || '').includes('text/markdown')) {\n return reply.type('text/markdown; charset=utf-8').send(renderMarkdown('page'));\n }\n return reply.view('/page.ejs');\n});"
},
{
"id": "nextjs",
"label": "Next.js",
"language": "typescript",
"filename": "app/page/route.ts",
"code": "// Next.js App Router — Route Handler returning Markdown\nimport { NextRequest } from 'next/server';\nimport { renderMarkdown } from '@/lib/md';\nexport async function GET(req: NextRequest) {\n const accept = req.headers.get('accept') || '';\n if (accept.includes('text/markdown')) {\n return new Response(await renderMarkdown('page'), {\n headers: {\n 'Content-Type': 'text/markdown; charset=utf-8',\n 'Vary': 'Accept',\n },\n });\n }\n // Fall through to the page component\n return new Response(null, { status: 404 });\n}"
},
{
"id": "wordpress",
"label": "WordPress",
"language": "php",
"filename": "functions.php",
"code": "<?php\n// Mechanism 1: respond to Accept: text/markdown on the same URL\nadd_action('template_redirect', function () {\n if (!is_singular()) return;\n $accept = $_SERVER['HTTP_ACCEPT'] ?? '';\n if (strpos($accept, 'text/markdown') === false) return;\n header('Content-Type: text/markdown; charset=utf-8');\n header('Vary: Accept');\n $post = get_queried_object();\n echo \"# \" . get_the_title($post) . \"\\n\\n\";\n echo wp_strip_all_tags(apply_filters('the_content', $post->post_content));\n exit;\n});"
},
{
"id": "static",
"label": "Hugo / Jekyll / Astro",
"language": "txt",
"filename": "static/page.md",
"code": "# Mechanism 2: serve .md alongside .html\n# Hugo: place page.md in /static/ — built unchanged\n# Jekyll: drop page.md in /assets/ — copied as-is\n# Astro: src/pages/page.md.ts that exports a GET returning markdown\n\n# Then advertise with mechanism 3 in <head>:\n# <link rel=\"alternate\" type=\"text/markdown\" href=\"/page.md\">"
}
]
}
]
}Use our API to get this programmatically (coming soon)
This JSON is for internal use — unlike the Markdown and llms.txt files, it's not meant to be uploaded to your site. Save it as a baseline to track your score over time, share it with your dev team, or integrate it into your CI/CD pipeline.
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Cloudflare runs a free scanner too, and it asks a different question. It scores what your site publishes for agents to call — MCP server cards, Agent Skills, API catalogs, DNS records. We score whether an agent can reach, read and understand your content. A site can do well on one and poorly on the other, so expect two different numbers: they are answers to two different questions, and both are worth knowing.
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