... The Pleiades Star Cluster . ... Perhaps the most famous star cluster on the sky, the Pleiades can be seen without binoculars from even the depths of a light-polluted city. ... Welcome to Planet Earth . ... Welcome to Planet Earth, the third planet from a star named the Sun. ... Manicouagan Impact Crater . ... The center of the Andromeda galaxy is beautiful but strange. ... As a present to APOD readers, digital imager Mattias Malmer offers a very high resolution view of big beautiful Saturn. ...