ナショナルジオグラフィックのインスタグラム(natgeo) - 12月20日 03時03分

Photograph by Max Aguilera-Hellweg (@xfilm7). The first footprints on Mars might be those of robots like Valkyrie, being tested by Northeastern University engineers. Robots could build a base before humans arrived. Later they’d do chores, such as cleaning dust off solar panels.
Watch the finale of #MARS tonight at 9/8c on @NatGeoChannel.

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