183567main_pia09942-516.jpg | Naked Scientists - 188BET竞彩,188金宝慱亚洲体育app

In this artist's concept illustration, NASA's Phoenix Mars Lander begins to shut down operations as winter sets in. The far-northern latitudes on Mars experience no sunlight during winter. This will mark the end of the mission because the solar...

Credit:

CC0 - NASA/JPL-Calech/University of Arizona

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