Happy International Year of Astronomy! Capitalizing on the fact that 2009 marks the 400th anniversary of Galileo’s earliest telescopic forays into the night sky, the International Astronomical Union ...

Observing the phases of Venus helped Galileo conclude that planets in our solar system orbit the sun, not the Earth. Credit: Creators.com illustration Ask your friends and neighbors, and most will ...

It’s hard to miss the planet Venus. Unless the moon is up, this second planet from the sun can be the brightest object in the night sky. Right now, Venus is high in the west as darkness falls. It’s ...

Venus will reach its highest altitude in the morning sky on Aug. 1 while shining close to Jupiter in the 'hand' of the constellation Orion. Stargazers in the U.S. will see Venus rise above the eastern ...