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

一 |     　　继千亿美元的Terafab芯片厂项目后，世界首富马斯克的“画饼列表”中又多一个千亿美元级别的太空发射场项目。
　　当地时间周二，美国路易斯安那州政府和SpaceX共同宣布，商业航天巨头计划投资1000亿美元，在该州南部建设一座巨型新发射场，占地面积约12.5万英亩。SpaceX表示，该基地的设计目标是支持“每年数千次星舰飞行”。 （来源：路易斯安那州政府）　　根据目前的规划，名为“路易斯安那星港”的发射场预计将包括5个发射综合体，每个综合体配备两个发射台；此外还将配备“推进剂生产、电力供应、深水航运能力、飞行器处理设施以及一座机场”。 （来源：SpaceX官网）　　该项目将从2027年开始建设，目标是2029年完成首次发射。

二 |     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.。

三 | 　　马斯克也在社交媒体上表示，“路易斯安那星港”最终将拥有“超过一打的发射台”，支持每天能够进行30次“星舰”发射，成为地球上最大的发射场。　　短期来看，这座发射场将为SpaceX提供第三个发射“星舰”的场所。SpaceX目前主要在得克萨斯州南部建造和发射星舰。

四 | 该公司还在佛罗里达州卡纳维拉尔角开发第二个发射地点。　　坐落于路易斯安那州的发射场将使得“星舰”能够向南飞越墨西哥湾，并将飞行器送入地球极地上空。这对于SpaceX建造最多100万颗数据中心卫星的计划至关重要，该公司希望将这些卫星部署在近极地轨道上。　　需要说明的是，承载着马斯克星际移民梦想的“星舰”目前仍处于早期迭代阶段。　　今年至今，SpaceX仅进行了两次“星舰”试飞，目前技术团队正在攻关“星舰”飞船的回收难题。

五 | 马斯克上周曾预计，用发射塔回收飞船的尝试可能还需要再等几个月，现在的时间表是今年底或明年初完成飞船的复用发射。　　盼着“星舰”实现航天员重回月球梦想的美国国家航空航天局，也在“催促”SpaceX提高发射频率。NASA局长贾里德·艾萨克曼本月曾表示，如果“星舰”能够保持每个月发射一次，甚至到年底实现几周发射一次，他将会对明年进行“星舰人类着陆系统”测试感到更有信心。　　从近期规划来看，“星舰”还将承担多项重要任务，包括发射体积更大、经过升级的Starlink卫星以提升互联网服务容量，以及最快于2027年部署轨道数据中心。（文章来源：财联社）。

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Published on:10:48:03