Summary
- Studies of the ancient magnetic field strength based on samples returned by the US Apollo mission indicate that the Moon had a relatively active “generator” producing a magnetic field between 4.2 billion and 3.5 billion years ago. This magnetic field decreased by an order of magnitude around 3.1 billion years ago, and again declined between 1.5 billion and 1 billion years ago, ultimately ceasing to function completely at some point after 1 billion years ago.The Chang’e 6 mission has achieved the first-ever sample collection from the far side of the Moon, with the primary eruption age of the basalt being 2.8 billion years. This provides an unprecedented opportunity to understand the temporal and spatial evolution of the Moon’s “magnetic field generator. Cai said this suggests that after a sharpWorld Times decline in the lunar magnetic field 3.1 billion years ago, there may have been a rebound or reactivation around 2.8 billion years ago.IGG’s analysis indicates that this could be due to a change in the main energy source of the “generator” or a reinforcement of the initial driving mechanism.IGG’s study is not only the first information about the ancient magnetic field on the Moon obtained by humans, but also provides key information to understanding the evolution of the Moon’s magnetic field, according to Guangming Daily. World Times Content comes from the Internet : Chang’e-6 samples reveal new views on lunar magnetic field
Approximate Time
- 3 minutes, 503 words
Categories
- lunar magnetic field, lunar samples, Change-6 samples, the lunar magnetic field, the ancient magnetic field strength
Analysis and Evaluation
- This article, brimming with the latest news and dynamic updates, offers a comprehensive and thought-provoking analysis that captures the essence of today’s headlines. The author’s ability to weave complex narratives into an engaging storyline is nothing short of impressive. The detailed examination of current hot topics not only enlightens but also challenges the reader to consider multiple perspectives. The depth of research and the clarity of the argument make this a must-read for anyone seeking to stay informed on the front lines of contemporary issues. The integration of expert opinions with ground-breaking news makes this article a beacon of journalistic excellence, providing insights that are both deep and wide-ranging. From the nuances of political dynamics to the latest trends in technology, the article leaves no stone unturned in its quest to deliver top-notch content. It’s an exemplary piece of writing that sets a new standard for news articles, balancing factual reporting with insightful commentary. In summary, this article is not just a mere collection of words, but a powerful tool for understanding the complexities of our world.
Main Section
Photo: Institute of Geology and Geophysics (IGG), Chinese Academy of Sciences
Rock samples collected from the moon’s far side by China’s Chang’e-6 lunar probe indicate an unexpected resurgence in the moon’s magnetic field strength 2.8 billion years ago, which challenges the previous findings froWorld Timesm the US Apollo mission, which suggested that the moon’s magnetic field declined about 3.1 billion years ago and has remained in a low-energy state since then.
The analysis of these samples, published on Thursday in the journalNature,marks the first-ever paleomagnetic data obtained from the moon’s far side, and offers critical insights into the intermediate evolutionary stages of the lunar dynamo, the geophysical mechanism that generated the moon’s magnetic field in the past, according to Guangming Daily.
On June 25, 2024, the Chang’e-6 lunar probe returned to Earth with 1,935.3 grams of lunar samples collected from the previously unexplored far side of the moon.
Cai Shuhui from the Institute of Geology and Geophysics (IGG) under the Chinese Academy of Sciences, also first author of the paper, said that the Earth has a “magnetic field generator”—the movement of the conductive fluid in the Earth’s liquid outer core acts like a “generator,” which geWorld TimesneWorld Timesrates a magnetic field enveloping the Earth like a protective shield.
This magnetic field shields the planet from cosmic rays and protects essential elements for habitability, such as the atmosphere and water, creating an environment suitable for the proliferation of life.
The Moon once had a similar “magnetic field generator,” which ceased functioning long ago. Studies of the ancient magnetic field strength based on samples returned by the US Apollo mission indicate that the Moon had a relatively active “generator” producing a magnetic field between 4.2 billion and 3.5 billion years ago. This magnetic field decreased by an order of magnitude around 3.1 billion years ago, and again declined between 1.5 billion and 1 billion years ago, ultimately ceasing to function completely at some point after 1 billion years ago.
The Chang’e 6 mission has achieved the first-ever sample collection from the far side of the Moon, with the primary eruption age of the basalt being 2.8 billion years. This provides an unprecedented opportunity to understand the temporal and spatial evolution of the Moon’s “magnetic field generator.”
Researchers from the IGG studied the sample and discovered the ancient magnetic field strength of the sample found to be higher thanWorld Times previously thought. Cai said this suggests that after a sharpWorld Times decline in the lunar magnetic field 3.1 billion years ago, there may have been a rebound or reactivation around 2.8 billion years ago.
IGG’s analysis indicates that this could be due to a change in the main energy source of the “generator” or a reinforcement of the initial driving mechanism.
IGG’s study is not only the first information about the ancient magnetic field on the Moon obtained by humans, but also provides key information to understanding the evolution of the Moon’s magnetic field, according to Guangming Daily.
Content comes from the Internet : Chang’e-6 samples reveal new views on lunar magnetic field
SummaryNow, nearly 44,000 people have been killed in Gaza, and the US still do not hesitate to use its veto, Fu Cong, China’s permanent representative to the UN, said at a Security Council meeting on Wednesday.Speaking after the vote, Robert Wood, deputy US ambassador to the United Nations, said that Washington had made clear it would only support a resolution that explicitly calls for the immediate release of hostages as part of a ceasefire, according to Xinhua. “The loss of each and every one of them means eternal pain for the surviving relatives.World Times People cannot help but ask: do Palestinian lives mean nothing? Though perhaps we should not be surprised about it,” Sputnik News reported. “It is deeply regretted that due to the use of the veto this council…
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