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In the upper left quadrant of a vertical image, against a black background, a large orange-yellow star is shown with tendrils of gas – a stellar flare – streaming out from the star at about the 4 o'clock position. The flare is streaming toward a bluish planet, smaller than the star, at the center right of the image; streaks of grayish white streaming from the planet toward the lower right indicate dissipation of the planet's atmosphere in response to the flare. A second planet, much smaller because farther away, can be seen to the right of the star and above the foreground planet.

four engineers examining a Europa Clipper instrument

Archived NASA Science Websites

This collection of archived NASA science websites offers a snapshot of past missions, programs, and research efforts. While these sites are no longer maintained—and some links or features may no longer work—they remain valuable as historical records, preserving the state of science communication and content at the time they were published. These archives are made available as a resource for researchers, educators, and the curious public.

Visit the NASA Science Archives

Sample of our archived sites

Screenshot of an archived NASA website showing a stylized illustration of the universe with galaxies, stars, and cosmic phenomena. Text reads “Welcome to the Universe.”

Screenshot of an archived NASA James Webb Space Telescope webpage featuring a galaxy cluster image and text about gravitational lensing and the galaxy RX J2129.

James Webb Space Telescope

Screenshot of an archived NASA Solar System Exploration website featuring a high-resolution image of Pluto with the caption: “Pluto – Dwarf planet may have a hidden ocean.”

Screenshot of an archived NASA Moon website showing an astronaut on the lunar surface, a water molecule graphic labeled H₂O, and a timeline titled “Uncovering Lunar Water.”

Screenshot of an archived NASA Eyes website featuring visualizations for "Eyes on the Solar System" and "Eyes on Asteroids," with descriptions of real-time 3D space data tools.

Screenshot of an archived NASA Exoplanet Exploration website showing illustrated planets in deep space with the headline “Discovery Alert: Two 'Nearby' Worlds Might be Habitable.”

Screenshot of an archived NASA Earth Observatory webpage featuring satellite imagery of an ocean bloom and a featured article titled “A Massive Seaweed Bloom in the Atlantic.”

Earth Observatory

Screenshot of an archived NASA Global Climate Change website showing Earth from space with the headline “Understanding our planet to benefit humankind,” and key climate indicators including carbon dioxide, global temperature, methane, sea level rise, and ice loss.

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