🚨比预期大10 倍的星际彗星穿越太阳系 据哈佛大学的阿维·勒布称，3I/ATLAS 重达330亿吨，核心直径为3.1英里，是有史以来记录到的最大的星际访客。 这颗二氧化碳彗星于7月被美国宇航局的 ATLAS 系统发现，它起源于射手座，正快速掠过地球(没有威胁)。 它将于10月3日经过距火星167万英里的范围内，然后经过木星和金星，最后消失在太阳后面。 这是继“奥陌陌”(2017年)和“鲍里索夫”(2019年)之后发现的第三个星际物体。 韦伯望远镜证实它主要是含有水冰的冻结二氧化碳。 来源:ABC 🚨INTERSTELLAR COMET 10X BIGGER THAN EXPECTED RACES THROUGH SOLAR SYSTEM 3I/ATLAS weighs 33 billion tons with a 3.1-mile nucleus, making it the largest interstellar visitor ever recorded, according to Harvard's Avi Loeb. The carbon dioxide comet, detected in July by NASA's ATLAS system, originated from constellation Sagittarius and is speeding past Earth (no threat). It'll pass within 1.67 million miles of Mars on October 3, then swing by Jupiter and Venus before disappearing behind the sun. Only the third interstellar object ever spotted after 'Oumuamua (2017) and Borisov (2019). Webb telescope confirms it's mostly frozen CO2 with water ice. Source: ABC
