Astronomy Picture of the Day

Comet Garradd (C/2009 P1) now shines in planet Earth's evening skiesTails of Comet Garradd  Image Credit & Copyright: Gregg Ruppel Explanation: A good target for binoculars and small telescopes, Comet Garradd (C/2009 P1) now shines in planet Earth's evening skies, a steady performer but just below naked-eye visibility.Telescopic images like this composite from October 15 can find the comet with a lovely green coma, sporting multiple tails, and lingering against a background of ... Full Story