A robotic spacecraft circling Mars has snapped the first image of a series of active avalanches near the planet's North Pole, scientists said Monday.
科学家在星期一说,一艘环绕火星飞行的遥控的宇宙飞船拍摄到该行星北极附近一系列主动雪崩的首张照片。
A robotic spacecraft circling Mars has snapped the first image of a series of active avalanches near the planet's North Pole, scientists said Monday.
科学家在星期一说,一艘环绕火星飞行的遥控的宇宙飞船拍摄到该行星北极附近一系列主动雪崩的首张照片。
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