...the who's who,
and the what's what 
of the space industry

news Space News

Search News Archive

Title

Article text

Keyword

China's Chang'e-4 probe reveals landing site impact history on moon's far side

Written by  Wednesday, 09 September 2020 09:31
Write a comment
Beijing (XNA) Sep 10, 2020
Based on data from China's Chang'e-4 probe, Chinese scientists have determined the thickness of the regolith and revealed the fine subsurface structures and evolutionary history of the probe's landing site on the moon's far side. The study revealed that the landing area of the probe, located within the largest and oldest impact basin on the moon, had experienced multiple impact events and

Based on data from China's Chang'e-4 probe, Chinese scientists have determined the thickness of the regolith and revealed the fine subsurface structures and evolutionary history of the probe's landing site on the moon's far side.

The study revealed that the landing area of the probe, located within the largest and oldest impact basin on the moon, had experienced multiple impact events and basalt magma eruptions.

The Chang'e-4 probe, launched on Dec. 8, 2018, made the first-ever soft landing on the Von Karman Crater in the South Pole-Aitken Basin on the far side of the moon on Jan. 3, 2019.

Carrying scientific instruments including a lunar penetrating radar, the rover Yutu-2 has conducted scientific detection on the compositions of lunar surface materials and the subsurface structures.

Scientists from the Institute of Geology and Geophysics (IGG) under the Chinese Academy of Sciences (CAS), the Aerospace Information Research Institute under the CAS, the Macao University of Science and Technology and other institutes have carried out research on the lunar penetrating radar onboard Yutu-2 during the first three lunar days and obtained important findings on the subsurface structure of the landing area.

The results showed that the materials detected by Yutu-2 come from the nearby Finsen impact crater rather than the basalt erupted from the lunar mantle, which filled the bottom of the Von Karman Crater. It was also revealed that the landing area had experienced multiple impact events and basalt magma eruptions.

The new discoveries are of great significance to understanding the evolutionary history of the South Pole-Aitken basin of the moon, as well as to the following exploration and research on the composition and structure of the lunar interior, said Lin Yangting, a researcher with the IGG.

Asteroid impacts are an important driving force for the early evolution of the Earth. However, the long-term geological tectonic activities have erased most of the traces of the impact cratering events on Earth, experts said.

The internal evolution of the moon has long ceased due to its small mass. Therefore, impact craters and the deposit profile of crater ejecta on the lunar surface have recorded the impact history of asteroids in the earth-moon system.

According to Lin, the subsurface structure of the moon recorded the number and scale of large-scale impact events and magma eruptions, as well as their temporal and spatial relationships. However, the fine structure of the moon's shallow layers remains a mystery to humans.

The modification of lunar surface materials by asteroid impacts has a direct influence on the results obtained from orbital observations and landing site reconnaissance, and affects how scientists will implement the lunar sample return missions in the future, Lin said.

The study was published in the latest issue of Nature Astronomy.

Source: Xinhua News Agency


Related Links
Chinese Lunar Exploration Program
Mars News and Information at MarsDaily.com
Lunar Dreams and more

Tweet

Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once

credit card or paypal

SpaceDaily Monthly Supporter
$5 Billed Monthly

paypal only



MOON DAILY
NASA enlists commercial partners to fly payloads to Moon
Washington DC (SPX) Sep 09, 2020
NASA has issued another request to its 14 Commercial Lunar Payload Services (CLPS) partners to bid on flying a suite of payloads to the Moon. The request asks partners to fly 10 NASA science investigations and technology demonstrations to a non-polar region of the Moon in 2022. Through the CLPS initiative, NASA taps its commercial partners to quickly land scientific instruments and technology demonstrations on the Moon. The initiative is a key part of NASA's Artemis program. The science and ... read more


Read more from original source...

You must login to post a comment.
Loading comment... The comment will be refreshed after 00:00.

Be the first to comment.

CONTACT THE AUTHOR

* Denotes Required Field
Personal information
Message

Interested in Space?

Hit the buttons below to follow us...