美国航天局确认,3I/Atlas是另一个恒星系统的星际彗星,2025年底穿过我们的太阳系,被望远镜和航天器捕获。 NASA confirms 3I/Atlas, an interstellar comet from another star system, passed through our solar system in late 2025, captured by telescopes and spacecraft.

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翔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 its flyby. 地面望远镜还观测到彗星,该彗星用望远镜在天前的天空中可见。 Ground-based telescopes also observed the comet, visible in the predawn sky with binoculars. 科学家们说它起源于另一个恒星系统 提供了对星际材料的稀有洞察力 Scientists say it originated from another star system, offering rare insights into interstellar material. 美国航天局排除了网上的推测, 它可能是一个外星人航天器, 重申它的重点是研究自然宇宙现象。 NASA dismissed online speculation it could be an alien spacecraft, reaffirming its focus on studying natural cosmic phenomena.