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Sun shines on future Mars colonies

发布时间:2019-03-02 09:11:07来源:未知点击:

By Paul Marks WHILE NASA’s Phoenix lander slowly dies of power loss in the darkening Martian arctic, the space agency is weighing up the pros and cons of nuclear and solar power for a human mission to Mars. Vocal protests accompanied the launch of the deep-space probes Cassini, Galileo and New Horizons, which all contained nuclear power generators,