Curiosity Rover Encounters Technical Difficulties On Martian Mountain
NASA engineers are trying to figure out why a part of the rover's robotic arm keeps stalling just as it's about to drill into Martian rock.
Đọc thêm tại NPR
at December 14, 2016 at 07:53AM
Health & Science
Thứ Tư, 14 tháng 12, 2016
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