April 23, 2014 5:39 PM EDT

Astronomers are one step closer to figuring out what the Milky Way galaxy looks like
Astronomers are one step closer to solving a longstanding mystery - just what our Milky Way galaxy looks...
ISS astronauts take spacewalk to tackle crucial repair job
Space station astronauts are taking a spacewalk to replace a dead computer and get their orbiting home...
Secret to surviving mass extinctions? Don't be a picky eater
Finicky eaters usually do not survive mass extinction events, suggests a new study on prehistoric big...
Time-lapse video shows powerful asteroids strike Earth with surprising frequency
Since the start of the 21st century, dozens of incoming asteroids have slammed into Earth, some of them...
Chunk of Africa found underneath Southeastern US
Geoscientists have identified a chunk of Africa stuck onto the southeastern United States. A long mysterious...
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