Astronomy Picture of the Day . ... The star forming region's glowing gas clouds and hot young stars.. Tisdale 2 Rock Formation on Mars . ... The relative average abundance in our Solar System appears higher than can be made in the early universe, in stars, and even in typical supernova explosions. ... Sweeping through planet Earth's night sky, last weekend Comet Garradd (C/2009 P1) visited this lovely star field along the Milky Way in the constellation Vulpecula. ... In the Shadow of Saturn . ...