星际彗星3I/ATLAS释放的甲醇比氰化氢多120倍,暴露出不同于任何太阳系彗星的独特化学成分。 Interstellar comet 3I/ATLAS releases 120 times more methanol than hydrogen cyanide, revealing unique chemistry unlike any solar system comet.

国际星际彗星3I/ATLAS是另一个恒星系统访问我们太阳系的第三个已知物体,根据ALMA2025年底的观测结果,正在释放异常高水平的甲醇,比氰化氢高出120倍。 Interstellar comet 3I/ATLAS, the third known object from another star system to visit our solar system, is releasing unusually high levels of methanol—up to 120 times more than hydrogen cyanide—according to ALMA observations in late 2025. 彗星的昏迷由阳光温暖其冰冷表面形成,显示其核粒和冰冷颗粒的甲醇排放,在星际物体中前所未见。 The comet’s coma, formed as sunlight warmed its icy surface, shows methanol emissions from both its nucleus and icy particles, a phenomenon not seen before in interstellar objects. 其化学成分,包括以二氧化碳为主的昏迷状态和无铁镍的痕迹,与太阳系彗星截然不同。 Its chemistry, including a coma dominated by carbon dioxide and traces of nickel without iron, differs sharply from solar system comets. 科学家认为,极端甲醇水平表明,甲醇是在一种更冷、化学上截然不同的环境中形成的,对太阳系以外的行星形成提供了罕见的洞察力。 Scientists believe the extreme methanol levels suggest it formed in a colder, chemically distinct environment, offering rare insights into planetary formation beyond our solar system.