The Mars Science Laboratory (MSL) is a NASA rover scheduled to launch in December 2009 and perform a precision landing on Mars in October 2010. This rover will be three times as heavy and twice the width of the Mars Exploration Rovers (MERs) that landed in 2004. It will carry more advanced scientific instruments than any other mission to Mars. The international community will provide most of these instruments. The MSL rover will be launched by an Atlas V 541. Once on the ground, MSL will analyze dozens of samples scooped up from the soil and cores from rocks. MSL will be expected to operate for at least 1 martian year (~2 Earth years) as it explores with greater range than any previous Mars rover. It will investigate the past or present ability of Mars to support life.
MSL is expected to weigh over 800 kg (1,760 lb) including 65 kg (143 lb) of scientific instruments. At present 10 instruments have been selected for development or production for MSL.
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