... Outstanding in planet Earth's sky early this year, Comet McNaught is captured in this view from the STEREO A spacecraft. ... Small Galaxy NGC 4449 . ... Their newly formed, bright, blue star clusters along beautiful, symmetric spiral arms are guaranteed to attract attention. ... The bright clusters and nebulae of planet Earth's night sky are often named for flowers or insects, and NGC 6302 is no exception. ... NGC 3372, known as the Great Nebula in Carina, is home to massive stars and changing...