IN SPACE - MAY 25: In this handout illustration provided by NASA/JPL, an artist's conception of the Phoenix Mars Lander on the Red Planet. Phoenix is slated to land on Mars on May 25, 2008. Launched in the summer of 2007 the lander will join the twin Mars rovers, Spirit and Opportunity and will study whether permafrost could have supported primitive life on the planet. (Photo Illustration by NASA/JPL via Getty Images)