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The unmanned Chinese spacecraft ChangA4, which landed on the moon on Jan. 4, faced a colder night than expected, according to the Chinese Space Agency.
The moon's temperature dropped to 190 degrees below freezing on its first night on the moon, and scientists were not expecting the heat to diminish. These temperatures are lower than those recorded by US vehicles during previous missions, perhaps because previous missions had been exploring the moon's surface since the moon, while the Chang & # 39; e 4 had landed on the hidden side , always blocked from the ground.
The agency predicted that the difference in the nature of the surface between the apparent side of the Earth and the hidden side is the reason for this difference in temperature.
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