There are billions of stars in our Milky Way galaxy - the stars we see at night when we look in a clear dark sky. To our eyes, these stars look as if they're standing still. But they're really moving. One of the nearest 45 stars, called Kapteyn's star, is an example of a high-velocity stars moving in the space near our sun.

Astronomers discover what might become the smallest solar system yet known. Read more about this tiny solar-system-to-be here with Kevin Luhman.

Dusty disks around young stars in infrared images provide a way to directly study these star-forming disks. Read more about how astronomers are studying them.

On July 2, 2006, asteroid 2004 XP14 passed not much farther than the moon's average distance from Earth. There is no danger of this asteroid striking Earth in the foreseeable future. But astronomers - like Judit Ries of the University of Texas - now know and study hundreds of other Near-Earth Objects like 2004 XP14.