Space
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- Space
Intruder Alert: Sweeping Space for Dust
The solar system is filling up with stardust three times faster than it was 6 years ago.
By Emily Sohn - Space
Big galaxy swallows little galaxy
Astronomers find a convincing case of a large galaxy caught in the act of eating a smaller one.
By Emily Sohn - Space
Sky Dust Keeps Falling on Your Head
Dust raining down from space and Earth's atmosphere provides information about weather patterns, pollution, and the origin of the universe.
By Emily Sohn - Planets
A planet from the early universe
Astronomers have found the oldest and most distant planet known in the universe.
By Emily Sohn - Planets
Melting Snow on Mars
Melting blankets of snow may have carved out Martian gullies.
By Emily Sohn -
- Space
Phantom Energy and the Big Rip
Weird stuff called dark energy could push the universe toward a runaway expansion and ultimate demise about 21 billion years from now.
By Emily Sohn - Planets
A planet’s slim-fast plan
A planet orbiting very close to its sun can quickly lose weight.
By Emily Sohn - Space
A galaxy far, far, far away
Astronomers have glimpsed some of the most distant galaxies yet found.
By Emily Sohn - Space
Black holes that burp
Some black holes in outer space may actually spit out as much material as they suck in.
By Emily Sohn