Sept. 30 (UPI) -- A new study published Tuesday suggested that the moon's far side of the moon may be colder than the near side.

The study, published in the journal Nature Geoscience, found that rock and soil fragments collected last year by China's Chang'e 6 spacecraft from a "vast" crater on the far side of moon had an interior temperature of 1,100 degrees Celsius, about 100 degrees Celsius cooler than samples found on the near side.

"It is one of the great mysteries of the moon," according to study co-author Yang Li, an associate professor of Earth and planetary sciences at Britain's University College London and Peking University in China.

UCL researchers in London now say their findings suggest that the conflicting geological environment between the moon's two faces likely extends far under its surface.

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