China's Chang'e-4 Discovers Glass Globules On Far Side Of Moon

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Download Science 11:36, 20-Feb-2022 China's Chang'e-4 discovers glass globules on far side of moon CGTN

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An image of the lander of Chang'e-4 probe. /CFP

An image of the lander of Chang'e-4 probe. /CFP

The Yutu-2 lunar rover of China's Chang'e-4 mission has discovered two macroscopic translucent glass globules during its exploration of the far side of the moon, which could potentially help reveal the moon's early impact history.

According to a study published in Science Bulletin, the Yutu-2 rover captured images of two translucent globules using its panoramic camera.

No composition data has been obtained for the globules. But their unique morphology and local context suggest they are most likely impact glasses – quenched anorthositic impact melts produced during cratering events – rather than being of volcanic origin or delivered from other planetary bodies, the researchers said.

Lunar anorthosite is a major rock of the lunar highlands, which formed in the lunar magma ocean.

The researchers said the globules are different from the glass beads sampled by the Apollo missions, as they are larger in size and exhibit colors.

They predicted that the glass globules would be abundant across the lunar highlands, providing promising sampling targets that could reveal the early impact history of the moon.

The Chang'e-4 probe, launched on December 8, 2018, made the first-ever soft landing in the Von Karman Crater in the South Pole-Aitken Basin on the far side of the moon on January 3, 2019. So far, Yutu-2 has traveled more than 1,000 meters on the far side of the moon.

Source(s): Xinhua News Agency Open in CGTN APP for better experience

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