SUNSET: 
2,165 results
Close-Up of an Alien World
The lunar surface consists of more than just craters and mare. Here's a guide to some of the other lunar features.
Vesta Tours the Hyades
This spring, track the third-largest body in the asteroid belt as it passes by the Hyades.
Lunar Occultation Highlights for 2002
Some stars that the Moon covers are so bright, you don’t even need a telescope. Here are some occultation highlights for 2002.
Have You Been Flashed By Iridium?
The Iridium satellites' antenna arrays are almost perfect mirrors. And when they catch the Sun just right — wow!
Martian Flare Watch
Sharp-eyed amateurs have an opportunity to observe a rare phenomenon on another planet and help solve a long-standing puzzle.
