When you look up at the sky and see the sun beaming down at you, it’s hard to tell how truly big it is. So consider this: 1.3 million duplicates of Earth could comfortably fit inside of it, according ...

Explore unbelievable space facts in this video, which covers topics such as the potential impact of the Moon colliding with Earth, the Golden Record, and the scariest astronaut picture. Discover ...

For most of 2012, Phil Plait of Bad Astronomy tweeted a random astronomy fact every day. To kick off 2013, you can read all of those facts in one place. Michelle Starr is CNET's science editor, and ...