On January 3 2004, NASA landed Spirit, a six-wheeled robot, on Mars. Its identical twin, Opportunity, followed on January 24. The unmanned rovers, each weighing about 384 pounds, are robotic geologists. Their mission is to look for evidence of water. If
During June, night sky observers will be treated to a Mars opposition. About every two years, the Earth passes between the Sun and Mars such that Mars and the Sun are on opposite sides of the Earth. During an opposition, Mars rises at sunset, is visible a
RSS Feed for This Page