... Starburst Cluster in NGC 3603 . ... A mere 20,000 light-years from the Sun lies NGC 3603, a resident of the nearby Carina spiral arm of our Milky Way Galaxy. ... Despite the innocuous sounding name, the launch of planet Earth's first artificial moon, Sputnik 1, by the Soviet Union on October 4, 1957, changed the world and set in motion events which resulted in the creation of NASA and the race to the Moon. ... APOD: 2007 October 1- The Small Cloud of Magellan . ... A Hole in Mars Close Up . ...