This undated image provided by NASA shows the Gale Crater on Mars. This image shows the landing site for the rover Curiosity, which is scheduled in August 2012 to touch down near the foot of Mount ... more 
This undated image provided by NASA shows the Gale Crater on Mars. This image shows the landing site for the rover Curiosity, which is scheduled in August 2012 to touch down near the foot of Mount Sharp, a mountain inside the crater on the red planet. On Friday April 13, 2012, NASA said it is drawing up a new, cheaper plan to go to Mars in 2018 and beyond and asked scientists for mission ideas. (AP Photo/NASA) less 
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Associated Press | Photo By NASA
Fri, Apr 13, 2012 5:56 PM EDT