美国航天局确认3I/Atlas是另一个恒星系统的彗星,2025年底经过我们的太阳系,被多个空间望远镜捕获。 NASA confirms 3I/Atlas, a comet from another star system, passed through our solar system in late 2025, captured by multiple space telescopes.

美国航天局发布了3I/Atlas的近距离图像,这是2025年夏季发现的第三颗经确认穿过太阳系的星际彗星。 NASA has released close-up images of 3I/Atlas, the third confirmed interstellar comet to pass through our solar system, discovered in summer 2025. 该彗星估计有1 444英尺至3.5英里宽,在2025年11月接近火星,在1 800万英里以内,在12月中旬接近地球约1.67亿英里之后,现在正在离开地球。 The comet, estimated 1,444 feet to 3.5 miles wide, made a close approach to Mars in November 2025, passing within 18 million miles, and is now moving away after its closest point to Earth—about 167 million miles—in mid-December. 包括James Webb空间望远镜和Juice飞行任务在内的美国航天局和欧空局多个航天器在飞行期间采集了数据和图像。 Multiple NASA and ESA spacecraft, including the James Webb Space Telescope and the Juice mission, captured data and images during the flyby. 彗星以望远镜在天前的天空中可见,据信在太阳系之前就已经形成,对另一个恒星系统的材料有难得的洞察。 The comet, visible in the predawn sky with binoculars, is believed to have formed before our solar system and offers rare insight into material from another star system. 美国航天局确认这是一个自然彗星,排除了外国航天器的投机,尽管在政府关闭之后,对公众调查的答复延迟。 NASA confirmed it is a natural comet, dismissing alien spacecraft speculation, though delayed responses to public inquiries followed a government shutdown.