Check out the most common cloud types found in the atmosphere, according to the Center for Science Education.
During the Rosetta's close flyby of comet Comet 67P/Churyumov-Gerasimenko on Feb. 14, the European spacecraft snapped images of the comet's 'belly' revealing a shadow of itself surrounded by a halo.
NASA flight engineer Terry Virts paid respects to Leonard Nimoy from the International Space Station.
Saharan dust energizes the Amazon, dozens of new sinkholes are found in Siberia, and an ancient tree frames a Hobbit-like building.
Photographer Beth Moon spent 14 years shooting to create this photo collection of ancient trees.
Take a tour of a mostly frozen Niagara Falls by drone, all from the comfort of your warm living room.
In this collection of our favorite recent shots of Earth: The Southwest heats up, Louisiana gains ground and we get a bird's eye view of the Sydney Opera house. Plus: A 44-square-mile chunk of ice makes a break for it off East Antarctica.
A SpaceX Falcon 9 rocket made its first foray into deep space this week, depositing a U.S. space weather satellite into an orbit that eventually will reach more than four times farther away than the moon.
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