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Samples from Asteroid May Provide Clues to Life on Earth_我的网站

凤凰大视野

A | Material brought back to Earth from an asteroid named Ryugu may provide clues on how the basic building blocks of life ended up on Earth.,How the building blocks required for all life on Earth got here remains a subject of debate among scientists, but asteroids bringing them here has long been a popular theory.,A new study looking at the 5.4 grams of material the Japanese Hatabusa2 probe returned to earth in 2020 after an eight year mission suggests that theory may hold some weight. The researchers, who hail from Japan and other countries, say they found organic material showing that amino acids, an essential building block for life on Earth, may have been formed in space.,‘Best Physical Models Can’t Fit The Data’: Radio Bursts Detected in Space ‘Defy’ Existing Theories7 August, 14:45 GMT,They also say that the material may provide clues to how oceans were formed in the early stages of Earth’s history.,“Volatile and organic-rich C-type asteroids may have been one of the main sources of Earth's water," the study scientists say.,They further state that it is likely at least some of the volatiles (water and organic material) came from outside of the solar system, but that it is unlikely that it was the only source.,“Ryugu particles are undoubtedly among the most uncontaminated Solar System materials available for laboratory study and ongoing investigations of these precious samples will certainly expand our understanding of early Solar System processes," said the study’s authors.,Scientists will soon have more asteroid material to study. NASA’s OSIRIS-REx mission collected a sample from a similar asteroid, named Bennu, which will return to Earth in 2023.。

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The Chinese Embassy in Thailand on Saturday issued a notice urging Chinese nationals traveling to Thailand for cultural and sports activities to comply with local laws and regulations, respect local customs, familiarize themselves with event rules, and through official channels to safeguard their rights.
The notice came after incidents involving Chinese nationals in Thailand, including an incident in which security personnel at Suvarnabhumi Airport were accused of inappropriate conduct while handling a Chinese passenger who had caused a disturbance and violated security rules.
The Chinese Embassy in Thailand urged Chinese nationals visiting the country for cultural and sports activities to comply with local laws and regulations, respect local customs and traditions, and follow event rules and management requirements.
The embassy called on Chinese visitors to interact with Thai people with respect, goodwill and openness, and to help maintain the long-standing friendship between the two countries under the concept of “China and Thailand as one family.”
It also advised travelers to familiarize themselves in advance with event regulations, including entry requirements, photography rules and restrictions on items allowed at venues, to avoid disruptions caused by unfamiliarity with local arrangements.
The embassy encouraged Chinese nationals to handle disputes rationally and lawfully, and to seek assistance through official channels, including event organizers, on-site staff, local authorities or Chinese diplomatic missions in Thailand, if their legitimate rights and interests are affected.
Earlier this week, Thailand's Suvarnabhumi Airport has apologized and disciplined security personnel over their inappropriate behavior during their duties to stop a Chinese passenger who caused disturbance and violated security measures. The incident sparked controversy following the denial of boarding to 22 Chinese passengers on a Bangkok-Beijing flight.
In July, the Chinese Embassy in Thailand said that it had urged relevant parties to ascertain the facts as soon as possible and properly handle the incident in which a Chinese national was manhandled by security personnel and escorted out of the venue during a book fair event in Bangkok, Thailand.
The embassy also said on Saturday that exchanges and cooperation between China and Thailand have continued to deepen in recent years, with people-to-people ties becoming increasingly close. It called on Chinese visitors to participate in cultural and sports activities in a civilized, rational and orderly manner, while promoting mutual understanding and friendship between the peoples of the two countries.
Global Times
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