China set to blast off to the far side of the moon—here’s what it could discover

[Pelican Press 0]

China set to blast off to the far side of the moon—here’s what it could discover

Artist’s impression of the lander. Credit:

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China is attempting to recover the first ever soil and rock samples from the lunar far side. The surface mission, Chang’e 6, named after the ******** moon goddess Chang’e, is a successor to the successful sample return mission, Chang’e 5, and a part of the ******** lunar exploration program.

The mission is set for launch using a

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rocket at the Wenchang satellite launch center in Hainan province on May 3. The spacecraft due to land on the moon is projected to weigh 3,200kg carrying scientific equipment from France, Italy and the ********* Space Agency.

Chang’e 5 was the first lunar sample-return mission since the ******* Union’s Luna 24 in 1976. Chang’e 5 was hugely successful, returning 2kg of material from the near side. This material led to important scientific discoveries, such as the

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ever discovered. Previously we only had much older samples returned from the Apollo missions and sampled meteorites. The younger material retrieved by Chang’e 5 helped scientists confirm the predicted ages of impact craters on the moon.

The spacecraft will reach the moon in approximately 53 days and aims to collect around 2kg of material from 2m below the surface. Chang’e 6 will attempt to land in the southern hemisphere, specifically, the southern portion of the Apollo crater, which resides within the South Pole-Aikin impact basin.

This

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, created by a large meteorite crashing into the moon, is thought to be the largest (2,400km), deepest (6.2–8.2km) and oldest (4.3 billion years old) on the moon.

Large meteorite collisions with the surface of the moon can potentially strip away the crust—outermost layer of the surface— and

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of deeper-forming materials. This means that studying the basin could help us learn more about what resides in the depths of the moon.

These

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, known as mantle-like material or dunite, are dominated by a mineral called

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. Mantle-like materials in the solar system, let alone the lunar meteorite record or returned samples, are extremely rare.

Potential discoveries

One of the first mantle fragments of the moon has been recently discovered in a meteorite, named

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. This small fragment (0.7cm in length) is thought to have formed at a depth of roughly 88km below the surface of the moon (give or take 22km).

However, contamination of meteorites from Earth’s atmosphere can result in anomalous results, especially in the

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contents of the sample.

While Apollo 17 also brought back an olivine-rich sample, it is not yet clear

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this material is derived from the mantle. In any case, these samples may be similar to those brought back from the Chang’e 6 mission.

Scientists haven’t been able to determined the mineral abundances and chemistry of the moon’s mantle. Lunar mantle material will provide a window into fundamental planetary processes such as unraveling the timing and mechanisms of the moon’s geological evolution.

Chang’e 6 is one of the most exciting missions of 2024, and scientists dearly hope for a successful launch this week. Many of us, including myself, are extremely excited to see the preliminary results.

And the journey for ******** lunar exploration doesn’t end there. In 2026, Chang’e 7 is similarly heading to the south polar region of the moon. However,

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will carry 21 scientific payloads, including a relay satellite, an orbiter, a lander, a rover, and a small flying probe, with the aim of landing the first lunar rover.

This mission will also carry “mini-hopping probes” to investigate the permanently shadowed regions of the moon where ice made of water may reside—a potentially crucial resource for future crewed missions to the moon.

These missions solidify China’s hopes of sending humans back to the moon by 2030. It is a truly fascinating time in planetary science and exploration.

Provided by
The Conversation

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China set to blast off to the far side of the moon—here’s what it could discover (2024, May 2)
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