... Despite the innocuous sounding name, the launch of the Earth's first "artificial moon", Sputnik 1, by the Soviets on October 4, 1957 shocked the free world, setting in motion events which resulted in the creation of NASA and the race to the Moon. The Perseus Cluster of Galaxies . ... The Frothy Milky Way . ... Meet Antlia, a newly discovered neighbor of our Milky Way Galaxy. ... Big Sky Comet . ... Spiral Galaxy M83 . ... But M83 is quite a typical spiral - much like our own Milky Way Galaxy. ...