Mars Exploration Rovers, Spirit and Opportunity, which operated for years beyond their specification. There are two functional rovers on the surface of...

Mars Surface Exploration (MSE) is a systems engineering tool for the design of rover missions originally developed in 2003 by the Space Systems Engineering...

Mars Exploration Program (MEP) is a long-term effort to explore the planet Mars, funded and led by NASA. Formed in 1993, MEP has made use of orbital spacecraft...

NASA's Mars Exploration Rover (MER) mission was a robotic space mission involving two Mars rovers, Spirit and Opportunity, exploring the planet Mars. It...

humans to Mars has been the subject of aerospace engineering and scientific studies since the late 1940s as part of the broader exploration of Mars. Long-term...

known as MER-A (Mars Exploration Rover – A) or MER-2, is a Mars robotic rover, active from 2004 to 2010. Spirit was operational on Mars for 2208 sols or...

A Mars rover is a remote-controlled motor vehicle designed to travel on the surface of Mars. Rovers have several advantages over stationary landers: they...

war. Mars has an atmosphere that is unbreathable and thin, with surface temperatures fluctuating between −70 and 0 °C (−94 and 32 °F). While Mars has frozen...

MER-B (Mars Exploration Rover – B) or MER-1, is a robotic rover that was active on Mars from 2004 until 2018. Opportunity was operational on Mars for 5111...

Mars is the fourth planet from the Sun. The surface of Mars is orange-red because it is covered in iron(III) oxide dust, giving it the nickname "the Red...