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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[![NASA Logo](https://www.nasa.gov/wp-content/themes/nasa/assets/images/[email protected])](https://www.nasa.gov/)\n\n-   Explore\n\nSearch\n\n[![NASA Logo](https://www.nasa.gov/wp-content/themes/nasa/assets/images/[email protected])](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![015B0626.NEF](https://images-assets.nasa.gov/image/art002e021278/art002e021278~large.jpg?w=1920&h=1280&fit=clip&crop=faces%2Cfocalpoint)\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![A wide-angle, color selfie of NASA's Perseverance rover on a sloping, reddish-brown Martian landscape. The rover is positioned on the right side of the image, showing its intricate metallic body, six treaded wheels, and tall camera mast, which is turned to \"look\" directly at the viewer. The rocky, textured ground slopes downward to the left, revealing a vast, desolate basin and distant crater rims under a dusty, pale grayish-tan sky.](https://www.nasa.gov/wp-content/uploads/2026/07/pia26574-selfie.jpg?w=1024)\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![What’s Up: July 2026 Skywatching Tips from NASA](https://assets.science.nasa.gov/dynamicimage/assets/science/cds/ciencia/ciencias-terrestres/2026/Milky%20Way_Bill%20Dunford.png?w=1024)\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![NASA’s Webb Discovers Hidden Planet in Famous Star System](https://assets.science.nasa.gov/dynamicimage/assets/science/missions/webb/science/2026/07/STScI-01KX448CEBRHBBJW579AG64G0H.jpg?w=1024)\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![Utah Helicopter Flights Test NASA’s DAVINCI Mission to Venus](https://assets.science.nasa.gov/dynamicimage/assets/science/psd/solar-system/planetary-expeditions/2026-07-davinci-vadix/Brent%20Bos%20VADIX%20DAVINCI.jpg?w=1024)\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![NASA’s Roman Telescope Will Spot Distant Black Holes That Shred Stars](https://www.nasa.gov/wp-content/uploads/2026/07/tde.jpg?w=1024)\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![NASA Seeks Industry Input on Second Phase of Commercial Space Stations](https://www.nasa.gov/wp-content/uploads/2026/06/nasa-meatball-11-black-background.jpg?w=1024)\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![NASA Seeks Volunteers for New Yearlong Simulated Moon, Mars Mission](https://www.nasa.gov/wp-content/uploads/2026/07/mmea.png?w=1024)\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![Expedition 73 Crew Reflects on Science, Teamwork, and Life in Orbit ](https://www.nasa.gov/wp-content/uploads/2026/06/jsc2026e395621.jpg?w=1024)\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![A Tide-Fueled Trove of Biodiversity in Guinea-Bissau](https://assets.science.nasa.gov/dynamicimage/assets/science/esd/eo/images/iotd/2026/a-tide-fueled-trove-of-biodiversity-in-guinea-bissau/bijagosarchipelago_oli_20251128_th.jpg?w=1024)\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![Key Aqua Project Personnel](https://assets.science.nasa.gov/dynamicimage/assets/science/esd/earth-science-satellites-missions/Aqua_b.jpg?w=1024)\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![Ontario Wildfire Smoke Moves East](https://assets.science.nasa.gov/dynamicimage/assets/science/esd/eo/images/iotd/2026/ontario-wildfire-smoke-drifts-east/ontariofires_virs3_20260714_th.jpg?w=1024)\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![NASA Study Finds Near-Earth Asteroid Is Actually Comet](https://www.nasa.gov/wp-content/uploads/2026/07/1-pia21259.jpg?w=1024)\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![NASA Study of Pristine Meteorite Adds to Story of Ancient Asteroids](https://assets.science.nasa.gov/dynamicimage/assets/science/psd/ares/sciadv.aea2105-f2_HillsboroughClasts.jpg?w=1024)\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![NASA’s Perseverance Rover Reads Record of Ancient Mars Impacts](https://www.nasa.gov/wp-content/uploads/2026/07/pia26574-selfie.jpg?w=1024)\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![NASA’s Webb Discovers Hidden Planet in Famous Star System](https://assets.science.nasa.gov/dynamicimage/assets/science/missions/webb/science/2026/07/STScI-01KX448CEBRHBBJW579AG64G0H.jpg?w=1024)\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![NASA’s Roman Telescope Will Spot Distant Black Holes That Shred Stars](https://www.nasa.gov/wp-content/uploads/2026/07/tde.jpg?w=1024)\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![NASA’s Hubble Discovers First of Star Cluster’s Missing Black Holes](https://assets.science.nasa.gov/dynamicimage/assets/science/missions/hubble/releases/2026/07/STScI-01KW2HRNXWCFJ07B2CEN49KTFP.jpg?w=1024)\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![NASA Study Finds Near-Earth Asteroid Is Actually Comet](https://www.nasa.gov/wp-content/uploads/2026/07/1-pia21259.jpg?w=1024)\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![NASA Study of Pristine Meteorite Adds to Story of Ancient Asteroids](https://assets.science.nasa.gov/dynamicimage/assets/science/psd/ares/sciadv.aea2105-f2_HillsboroughClasts.jpg?w=1024)\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![Viking Project](https://assets.science.nasa.gov/dynamicimage/assets/science/psd/solar/internal_resources/1203/U_S__flag_visible_on_Viking_lander_with_Martian_terrain_on_horizon.jpeg?w=1024)\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![NASA Uses Subscale Aircraft to Accelerate Flight Innovation](https://www.nasa.gov/wp-content/uploads/2024/12/afrc2024-0166-033orig.jpg?w=1024)\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![SkyFall](https://assets.science.nasa.gov/dynamicimage/assets/science/missions/skyfall/Skyfall%20-%2010.jpg?w=1024)\n\n5 min read\n\n### SkyFall\n\narticle 3 days ago\n\n](https://science.nasa.gov/mission/skyfall/)[\n\n![NASA Study Points to Smoother Air Taxi Rides](https://www.nasa.gov/wp-content/uploads/2023/07/afrc2025-0184-36.jpg?w=1024)\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![Ontario Wildfire Smoke Moves East](https://assets.science.nasa.gov/dynamicimage/assets/science/esd/eo/images/iotd/2026/ontario-wildfire-smoke-drifts-east/ontariofires_virs3_20260714_th.jpg?w=1024)\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![Space Storm Solar Sail Sentinel (S5)](https://www.nasa.gov/wp-content/uploads/2026/06/ss-4300-ft2-deployment-5-1.jpg?w=1024)\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![Super Typhoon Bavi](https://assets.science.nasa.gov/dynamicimage/assets/science/esd/eo/images/iotd/2026/super-typhoon-bavi/typhoonbavi_vir_20260705_th.jpg?w=1024)\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![Space Out This Summer with Variety of NASA STEM Activities](https://images-assets.nasa.gov/image/art002e012476/art002e012476~large.jpg?w=1920&h=1440&fit=clip&crop=faces%2Cfocalpoint)\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![NASA Study Points to Smoother Air Taxi Rides](https://www.nasa.gov/wp-content/uploads/2023/07/afrc2025-0184-36.jpg?w=1024)\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![NASA Seeks Volunteers for New Yearlong Simulated Moon, Mars Mission](https://www.nasa.gov/wp-content/uploads/2026/07/mmea.png?w=1024)\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![How NASA’s Artemis III Lander Test Will Pave Way for Moon Landings](https://images-assets.nasa.gov/image/art002e021278/art002e021278~large.jpg?w=1920&h=1280&fit=clip&crop=faces%2Cfocalpoint)\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![La NASA anuncia la cobertura de la misión lunar Artemis II](https://www.nasa.gov/wp-content/uploads/2026/03/a2crew-7ff19d.jpg?w=1024)\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![Agenda diaria de la misión a la Luna de Artemis II de la NASA](https://www.nasa.gov/wp-content/uploads/2026/03/suit-patch.jpg?w=1024)\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![La NASA refuerza Artemis: añade una misión y perfecciona su arquitectura general](https://images-assets.nasa.gov/image/iss074e0325229/iss074e0325229~large.jpg?w=1920&h=1280&fit=clip&crop=faces%2Cfocalpoint)\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![Artist's concept of a tidal disruption event](https://www.nasa.gov/wp-content/uploads/2026/07/tde.jpg?w=2048)\n\n![Artist's concept of a tidal disruption event](https://www.nasa.gov/wp-content/uploads/2026/07/tde.jpg?w=150&h=150&crop=1)\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![](https://assets.science.nasa.gov/dynamicimage/assets/science/missions/webb/science/2026/07/STScI-01KX448CEBRHBBJW579AG64G0H.jpg)\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![](https://assets.science.nasa.gov/dynamicimage/assets/science/esd/eo/images/iotd/2026/ontario-wildfire-smoke-drifts-east/ontariofires_virs3_20260714_th.jpg)\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![](https://www.nasa.gov/wp-content/uploads/2026/07/pia26574-selfie.jpg?w=1024)\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![](https://images-assets.nasa.gov/image/art002e021278/art002e021278~large.jpg?w=1920&h=1280&fit=clip&crop=faces%2Cfocalpoint)\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![](https://images-assets.nasa.gov/image/KSC-20260714-PH-SER01_0003/KSC-20260714-PH-SER01_0003~large.jpg)\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![](https://assets.science.nasa.gov/dynamicimage/assets/science/astro/universe/news-images/Katalyst-Solar-arrays-3.png)\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![](https://assets.science.nasa.gov/dynamicimage/assets/science/psd/ares/sciadv.aea2105-f2_HillsboroughClasts.jpg)\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![](https://assets.science.nasa.gov/dynamicimage/assets/science/cds/ciencia/ciencias-terrestres/2026/Milky%20Way_Bill%20Dunford.png)\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![](https://www.nasa.gov/wp-content/uploads/2026/07/1-pia21259-f195ae.jpg?w=2048)\n\n## Solar System Exploration\n\n[Discover More](https://science.nasa.gov/solar-system/)\n\n[\n\n### Asteroids, Comets & Meteors\n\n![](https://science.nasa.gov/wp-content/uploads/2018/07/bennu-banner-1920x640-1.jpg)\n\n](https://science.nasa.gov/asteroids-comets-meteors/)[\n\n### Planetary Defense at NASA\n\n![](https://science.nasa.gov/wp-content/uploads/2023/08/pdco-bennu-wo-chunks.jpg)\n\n](https://science.nasa.gov/planetary-defense/)[\n\n### Science Missions\n\n![](https://science.nasa.gov/wp-content/uploads/2023/04/hubble_faq_image-jpg.webp)\n\n](https://science.nasa.gov/science-missions/)[\n\n### Eyes\n\n![](https://assets.science.nasa.gov/dynamicimage/assets/science/cds/eyes/common/promotion/Eyes_noText.png)\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![](https://www.nasa.gov/wp-content/uploads/2026/07/55380623885-a00df544bb-o.jpg?w=1536)\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![](https://www.nasa.gov/wp-content/uploads/2024/05/hubble-hptau-wfc3-1-flat-finalok.jpg?w=300)\n\n![](https://www.nasa.gov/wp-content/uploads/2023/03/hubble_j2034417_freggs_fullsize_0-1.jpg?w=300)\n\n![](https://www.nasa.gov/wp-content/uploads/2023/03/potw2135a.jpg?w=300)\n\n### Great Observatories: Hubble Space Telescope Gallery\n\n422 Images\n\n](https://www.nasa.gov/gallery/hubble/)[\n\n![](https://www.nasa.gov/wp-content/uploads/2024/04/stsci-01hv4cg0eacm1mc07e10x19knx.png?w=298)\n\n![](https://www.nasa.gov/wp-content/uploads/2024/04/timelapse-crab-nebula.jpg?w=300)\n\n![](https://images-assets.nasa.gov/image/stephan_quintet/stephan_quintet~large.jpg?w=1920&h=1840&fit=clip&crop=faces%2Cfocalpoint)\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![](https://images-assets.nasa.gov/image/GSFC_20171208_Archive_e002059/GSFC_20171208_Archive_e002059~large.jpg?w=1890&h=1920&fit=clip&crop=faces%2Cfocalpoint)\n\n![](https://www.nasa.gov/wp-content/uploads/2025/04/3dmodels-cygnus-astro-74ffde.jpg?w=278)\n\n![](https://images-assets.nasa.gov/image/PIA21089/PIA21089~orig.jpg?w=1800&h=1800&fit=clip&crop=faces%2Cfocalpoint)\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![Space image with stars and swirls of colorful orange, red and white.](https://www.nasa.gov/wp-content/uploads/2023/01/webb-tarantula-neb.png?w=1536)\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![](https://www.nasa.gov/wp-content/uploads/2026/07/55375047713-9b0d61cd90-o.jpg?w=1536)\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![](https://www.nasa.gov/wp-content/uploads/2023/02/15404646465-7920e6d9b7-o.jpg?w=1024)\n\n](https://www.nasa.gov/nasa-missions/)[\n\n### Humans In Space\n\n![](https://www.nasa.gov/wp-content/uploads/2022/12/51476067951-e10dfb6875-o.jpg?w=1024)\n\n](https://www.nasa.gov/humans-in-space/)[\n\n### Earth\n\n![](https://images-assets.nasa.gov/image/GSFC_20171208_Archive_e001016/GSFC_20171208_Archive_e001016~large.jpg)\n\n](https://science.nasa.gov/earth/)[\n\n### Our Solar System\n\n![](https://science.nasa.gov/wp-content/uploads/2023/06/solar-system-illustration-16x9-1.jpg)\n\n](https://science.nasa.gov/solar-system/overview/)[\n\n### Universe\n\n![](https://science.nasa.gov/wp-content/uploads/2023/09/ngc5068-1-flat-final.jpg)\n\n](https://science.nasa.gov/universe/)[\n\n### Science Missions\n\n![](https://science.nasa.gov/wp-content/uploads/2023/04/hubble_faq_image-jpg.webp)\n\n](https://science.nasa.gov/science-missions/)[\n\n### Aeronautics\n\n![](https://www.nasa.gov/wp-content/uploads/2025/05/p23-171-176.jpg?w=1024)\n\n](https://www.nasa.gov/aeronautics/)[\n\n### Technology\n\n![](https://www.nasa.gov/wp-content/uploads/2022/12/nasa_technology1.png?w=1017)\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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            "details": "No llms.txt found"
          },
          "has_content_signals": {
            "score": 0,
            "weight": 10,
            "evidence": "speculative",
            "details": "No Content-Signal found (robots.txt or HTTP headers)"
          }
        }
      },
      "structuredData": {
        "score": 100,
        "weight": 20,
        "grade": "A",
        "checks": {
          "has_schema_org": {
            "score": 100,
            "weight": 35,
            "evidence": "proven",
            "details": "JSON-LD found: Organization, WebSite, ImageObject, WebPage, Person, Article"
          },
          "has_open_graph": {
            "score": 100,
            "weight": 20,
            "evidence": "plausible",
            "details": "All OG tags present"
          },
          "has_meta_description": {
            "score": 100,
            "weight": 20,
            "evidence": "plausible",
            "details": "Meta description: 174 chars"
          },
          "has_canonical_url": {
            "score": 100,
            "weight": 15,
            "evidence": "plausible",
            "details": "Canonical URL present"
          },
          "has_lang_attribute": {
            "score": 100,
            "weight": 10,
            "evidence": "plausible",
            "details": "lang=\"en-US\""
          }
        }
      },
      "semanticHtml": {
        "score": 76,
        "weight": 15,
        "grade": "B",
        "checks": {
          "proper_heading_hierarchy": {
            "score": 70,
            "weight": 30,
            "evidence": "plausible",
            "details": "no <h1>"
          },
          "uses_article_or_main": {
            "score": 100,
            "weight": 25,
            "evidence": "plausible",
            "details": "Has both <article> and <main>"
          },
          "semantic_elements": {
            "score": 25,
            "weight": 20,
            "evidence": "plausible",
            "details": "42 semantic elements, 513 divs (ratio: 8%)"
          },
          "meaningful_alt_texts": {
            "score": 98,
            "weight": 15,
            "evidence": "plausible",
            "details": "39/40 images with meaningful alt text (32 decorative, not counted)"
          },
          "low_div_nesting": {
            "score": 99,
            "weight": 10,
            "evidence": "speculative",
            "details": "Avg div depth: 5.1, max: 12"
          }
        }
      },
      "contentEfficiency": {
        "score": 55,
        "weight": 10,
        "grade": "D",
        "checks": {
          "token_reduction_ratio": {
            "score": 100,
            "weight": 40,
            "evidence": "speculative",
            "details": "100% token reduction (HTML→Markdown)"
          },
          "content_to_noise_ratio": {
            "score": 0,
            "weight": 30,
            "evidence": "speculative",
            "details": "Content ratio: 0.2% (700 content chars / 338085 HTML bytes)"
          },
          "reasonable_page_weight": {
            "score": 50,
            "weight": 20,
            "evidence": "speculative",
            "details": "HTML size: 330KB"
          },
          "minimal_inline_styles": {
            "score": 50,
            "weight": 10,
            "evidence": "speculative",
            "details": "119/2529 elements with inline styles (4.7%)"
          }
        }
      }
    }
  },
  "recommendations": [
    {
      "id": "move_content_earlier",
      "priority": "critical",
      "category": "accessibility",
      "titleKey": "rec.move_content_earlier.title",
      "descriptionKey": "rec.move_content_earlier.description",
      "howToKey": "rec.move_content_earlier.howto",
      "effort": "moderate",
      "estimatedImpact": 5.6,
      "maxImpact": 7.5,
      "evidence": "plausible",
      "checkScore": 25,
      "checkDetails": "Main content starts at 67% of HTML"
    },
    {
      "id": "add_markdown_negotiation",
      "priority": "critical",
      "category": "aiDiscoverability",
      "titleKey": "rec.add_markdown_negotiation.title",
      "descriptionKey": "rec.add_markdown_negotiation.description",
      "howToKey": "rec.add_markdown_negotiation.howto",
      "effort": "significant",
      "estimatedImpact": 5,
      "maxImpact": 5,
      "evidence": "plausible",
      "checkScore": 0,
      "checkDetails": "No Markdown for Agents support detected"
    },
    {
      "id": "improve_content_ratio",
      "priority": "high",
      "category": "contentEfficiency",
      "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&#039;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&#039;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\">"
        }
      ]
    }
  ]
}

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