Over Twitter, NASA astronaut Scott Kelly answered questions about his daily life aboard the International Space Station.

SPACE
It looks like a license plate or a random jumble of letters and numbers put together by a preschooler. But “6EQUJ5” is the most tantalizing lead we have so far towards one day answering one of the most profound questions we can ask: is there intelligent l
You have to travel to especially high latitudes to get even an earth-bound view of the Aurora Borealis. But this latest look at the Northern Lights comes from an even more remote location: On board the International Space Station.
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We can think of Kepler-452b as an older, bigger cousin to Earth.
Before Neil Armstrong and Buzz Aldrin could set foot on the moon, they had to toss their trash.
Some initial conclusions about Pluto and Charon, its largest moon.
The closest encounter in the historic flyby just happened a few minutes ago. Here are the instruments New Horizons used to capture scientific data.