Abstract
An international flotilla of spacecraft are to be sent to Mars over the next decade in an effort to understand the planet's geology and climate history, and to determine whether some form of life ever started there. At least two spacecraft will be sent at each launch opportunity, and at times up to four spacecraft may be operating simultaneously at the planet.
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Carr, M., Garvin, J. Mars exploration. Nature 412, 250–253 (2001). https://doi.org/10.1038/35084200
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DOI: https://doi.org/10.1038/35084200
