In January 2004, Spirit and Opportunity, two identical robotic rovers, entered the martian atmosphere and landed after a seven-month journey from Earth. By the time "Is There Life on Mars?" ...

The Mars rover Spirit has come a long way since it hurtled down through the planet's atmosphere and came to a bouncy, airbag-protected stop at Gusev Crater on January 3, 2004. It has survived more ...

(CNN) --The Mars rover Spirit stretched its robotic arm over Martian soil Friday, and its microscopic imager is capturing even-higher-resolution images than the ones sent back after landing.