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On the left is a view of Europa taken from 2.9 million kilometers (1.8 million miles) away on March 2, 1979 by the Voyager 1 spacecraft. Next is a color image of Europa taken by the Voyager 2 spacecraft during its close encounter on July 9, 1979. On the right is a view of Europa made from images taken by the Galileo spacecraft in the late 1990s.

Copernicus Sentinel-6 on display.

Size of the very high-energy gamma rays are shown brightly in an X-ray image of the Crab Nebula (left), along with a one-dimensional special profile of the very high-energy gamma ray source (right).

Berkeley Lab climate scientists studied how the Hadley cell, a tropical air flow closely linked to monsoons, will change as the climate warms.

Runaway star was ejected from the “heart of darkness”

Ten Suns for 10 years

Ozone_hole_set_to_close_pillars.

Views from NASA's Methane Source Finder, a tool that provides methane data for the state of California. The data are derived from airborne remote-sensing, surface-monitoring networks and satellites and are presented on an interactive map alongside infrastructure information.

Apollo-era astronauts attracted a lot of Moon dust as they worked on the lunar surface. Goddard technologists are experimenting with different techniques to prevent the attraction when NASA returns to the Moon next decade.

This artist's concept shows one of NASA's Voyager spacecraft entering interstellar space, or the space between stars. This region is dominated by plasma ejected by the death of giant stars millions of years ago. Hotter, sparser plasma fills the environment inside our solar bubble.