Seven planets will line up for a rare "planetary parade" today (Feb. 28) and you can watch it live online, beginning at 12:00 p.m. ET (1700 GMT).

Staring at the sun—a close (but safe) look at our home star Staring at the sun—a close (but safe) look at our home star Need a new idea to keep kids entertained? Try stargazing. Need a new ...

NASA recently updated Europa Trek, a web portal that gives users the ability to "fly over" the surface of Europa, with a guided tour showcasing ... to see more of our solar system, you'll be ...