“This is the first image ever taken of Earth from the surface of a planet beyond the Moon. It was taken by the Mars Exploration Rover Spirit one hour before sunrise on the 63rd Martian day, or sol, of its mission. (March 8, 2004)”
Earth From Mars (by NASA Goddard Photo and Video)
(via:deepr)
Google helps to celebrate the 20th anniversary of the Hubble Telescope. From the google homepage you can click on sections of the picture which are actual links to various galaxies on Google Sky (space). Pretty cool.