This view of the twilight sky and Martian horizon taken by NASA's Curiosity Mars rover includes Earth as the brightest point of light in the night sky. Earth is a little left of center in the image, ... more 
This view of the twilight sky and Martian horizon taken by NASA's Curiosity Mars rover includes Earth as the brightest point of light in the night sky. Earth is a little left of center in the image, and our moon is just below Earth. The Curiosi less 
1 / 9
SPACE.com | Photo By NASA/JPL-Caltech/MSSS/TAMU
Thu, Feb 6, 2014 5:30 PM EST