NASAのインスタグラム(nasa) - 1月8日 22時19分

Your Home Planet, as Seen From Mars! From the most powerful telescope orbiting Mars comes a new view of Earth and its moon, showing continent-size detail on the planet and the relative size of the moon. The image combines two separate exposures taken on Nov. 20, 2016, by the High Resolution Imaging Science Experiment (HiRISE) camera on our Mars Reconnaissance Orbiter. The images were taken to calibrate HiRISE data, since the reflectance of the moon's Earth-facing side is well known. For presentation, the exposures were processed separately to optimize detail visible on both Earth and the moon. The moon is much darker than Earth and would barely be visible if shown at the same brightness scale as Earth.

Image Credit: NASA/JPL-Caltech/Univ. of Arizona

#nasa #space mars #earth #moon #redplanet #orbiter #hirise #mro #nasabeyond #science

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