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

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.。    每日商报讯 昨夜，杭州城北半山脚下，星光与灯火交映，“爱在七夕·情定望宸”拱墅区第十一届大运河集体婚礼暨巧山乞巧民俗活动如约而至。

B | 活动延续往年浪漫文脉，在大运河杭钢公园、半山国家森林公园联动启幕。实现传统婚俗与巧山乞巧文化的深度交融，持续擦亮半山特色文化IP，书写“和美半山”崭新篇章。巧山位于半山街道沈家桥辖区，古称龙珠山，因吴越王钱镠七夕登临观民间乞巧、南宋宋高宗驾幸此地而得名，是杭州传承千年的官方乞巧胜地。活动围绕“巧山有乞巧——有女初长成——天赐有缘人——合卺缔百年”人文脉络，以非遗为载体、民俗为内核，打造沉浸式国风盛宴。同时融合特色非遗市集、夜游体验、等多元新业态，培育甜蜜消费新场景，助力辖区文旅产业持续升级。活动当晚，十对新人身着宋制传统婚服，在礼官吟诵声中缓缓步入仪式区。礼乐迎宾之后，新人依次行却扇礼、沃盥礼、拜堂礼、合卺礼、结发礼及乞巧三礼，仿佛将千年前的婚仪盛景重现于昨夜半山。台下观礼的亲友与市民屏息凝神，不时报以热烈掌声，许多年轻人举起手机记录这难得一见的古典婚仪。仪式现场，还邀请婚龄11周年的夫妻代表分享幸福婚姻心得，传递和睦向善的婚恋理念。山脚下“巧山非遗乞巧市集”人声鼎沸，烟火气十足。市集规整排布了七大乞巧非遗体验项目与七间国风商铺，移步换景间，宛若穿越千年，重回南宋时期的七夕之夜。现场设置了趣味打卡互动环节，穿针乞巧、投针验巧、拜魁星、喜蛛应巧、巧果制作、凤仙染指、织女赐巧——七大体验项目依次铺陈，让市民亲身体验古时七夕“女儿乞巧”的民俗盛况。

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