Tags: Artificialsatellite, Satellite.
Opportunity MER-B (Mars Exploration Rover – B) is a robotic rover active on the planet Mars since 2004. Launched on July 7 2003 Opportunity landed on Mars’ Meridiani Planum on January 25 2004 at 05:05 Ground UTC (about 13:15 Mars local time) three weeks after its twin Spirit (MER-A) also part of NASA’s Mars Exploration Rover Mission touched down on the other side of the planet.
