“We shall not cease from exploration, and the end of all our exploring will be to arrive where we started and know the place for the first time.”

Cassini’s view as it passed through the shadow of Saturn and caught a glimpse of the backlit rings and the ice moon Tethys.

Sometime between May 2003 and September 2007 an object hit the Martian atmosphere and broke up into small fragments that slammed into this plain

Its handlers are convinced that Spirit is healthy again after a strange glitch last week, and so have commanded the rover to keep on rovin’.

At first glance, this might look like just another impact crater on the surface of Mars. In fact, the topography of the feature indicates that it’s a collapse pit