... Vega . ... Vega is a bright blue star 25 light years away. Vega is the brightest star in the Summer Triangle, a group of stars easily visible summer evenings in the northern hemisphere. ... A Massive Cluster In A Young Universe . ... M13 is one of the most prominent and best known globular clusters. ... Comet Hyakutake and the Milky Way . ... Visible above as the bright spot with the faint tail near.. ... The Dunes Of Mars . ... The North Pole of Mars is ringed by a "sea of sand dunes". ...