First rocks gathered from the moon’s far side by Chinese mission show Earth’s natural satellite has a colder side

By comparing the samples with those taken from the near side, they revealed a thermal asymmetry between the two sides of the moon, with the minerals from the far side appearing to have formed in interior lava temperatures of about 100 degrees Celsius (212 degrees Fahrenheit) lower than that of the near side.

“However, the absence of far side samples has long limited the investigations into the mechanisms driving this hemispherical asymmetry,” said the team led by researchers from University College London (UCL), Peking University and China National Nuclear Corporation.

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