Universe

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Lunar Shadow Transit

This snapshot from deep space captures planet Earth on March 9. The shadow of its large moon is falling on the planet’s sunlit hemisphere. Tracking toward the east (left to right) across the ocean-covered world..


New Horizons Spacecraft Finds Snowy Mountain Range on Pluto

One of Pluto’s most identifiable features, Cthulhu (pronounced kuh-THU-lu) stretches nearly halfway around Pluto’s equator, starting from the west of the great nitrogen ice plains known as Sputnik Planum. Measuring approximately 1,850 miles (3,000 kilometers)..








The Frozen Canyons of Pluto’s North Pole

Long canyons run vertically across the polar area—part of the informally named Lowell Regio, named for Percival Lowell, who founded Lowell Observatory and initiated the search that led to Pluto’s discovery. The widest of the..



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