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A Weakened Black Hole Allows Its Galaxy to Awaken

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.