火星北极

Secondary Creator Credit: NASA/JPL-Caltech/University of Arizona
NASA ID: PIA23671
Date Created: 2020-01-16
Image From: https://images.nasa.gov/details-PIA23671

You can click HERE to view high-resolution image.

NASA 的 MRO 探测器已经对火星持续观测了 6 个火星年,每个火星年大约是 687 地球年。图中的照片显示的是位于火星北极冰盖下的一处撞击坑,该撞击坑的底部有冰冷的沉积物。

References:
[1]. North Polar Changes over 6 Mars Years
https://images.nasa.gov/details-PIA23671

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