NASA's twin robot geologists,
the Mars Exploration Rovers, will launch toward Mars
in 2003 in search of
answers about the history of water on Mars.
The Mars Exploration Rover mission is part of NASA's
Mars Exploration Program, a long-term effort of robotic
exploration of the red planet. The program seeks to
take advantage of each launch opportunity to go to Mars,
which comes around every 26 months as the planets move
around the Sun. Scheduled for two separate launches
between May 30 and July 12, 2003, the two rovers will
be delivered in landing craft to separate sites on Mars
in January 2004.