Opportunity (rover)
Videos
Opportunity, also known as MER-B or MER-1, and nicknamed Oppy, is a robotic rover that was active on Mars from 2004 until 2018. Opportunity was operational on Mars for 5111 sols. Launched on July 7, 2
An artist's portrayal of Opportunity operating on the surface of Mars
Delta II Heavy (7925H-9.5) lifting off from pad 17-B carrying MER-B in 2003 with Opportunity rover
Opportunity's landing site (denoted with a star)
Graph of atmospheric opacity and Opportunity's energy reserve
Spirit (rover)
Videos
Spirit, also known as MER-A or MER-2, is a Mars robotic rover, active from 2004 to 2010. Spirit was operational on Mars for 2208 sols or 3.3 Martian years. It was one of two rovers of NASA's Mars Expl
Opportunity (rover)
…on July 7, 2003, as part of NASA's Mars Exploration Rover program, it landed in Meridiani Planum on January 25, 2004, three weeks after its twin, Spirit (MER-A), touched down on the other side of the planet. With a planned 90-sol duration of activity (slightly less than 92.5 Earth days), Spirit functioned…
The Mars Exploration Rover-2 (MER-2) during testing for mobility and maneuverability
Delta II lifting off with MER-A on June 10, 2003
Annotated Columbia Hills panorama from the Spirit landing site
An overall view of MER-A Spirit landing site (denoted with a star)