Mars 'hopper' may run on nuclear decay and Martian CO2

Nuclear decay-driven machines could gather gases from the atmosphere of Mars, giving future robotic missions leaps of a kilometre, researchers say. A design concept in Proceedings of the Royal Society A outlines an approach to compress CO2 and liquefy it. The liquid would then be heated much as in a standard rocket, expanding violently into a gas to propel exploratory craft great distances.


 carbon dioxide Mars probe lander robot transport nuclear energy fuel

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