中文翻譯:
在一個神奇的宇宙中，有一顆特別的天體叫做3I/ATLAS，這是來自另一個星系的彗星，像流星一樣在天空中游走。它有一個非常特別的形狀，像一顆淚珠，這是因為它的冰核在陽光的照射下變暖了，釋放出了一些塵埃。這幅照片是由哈勃太空望遠鏡拍攝的，讓我們看到這顆彗星的美麗。雖然它運行得非常快，並不是來自地球，但它們不會對我們的星球造成威脅。它正在朝著太陽移動，並會在非常靠近火星的地方經過。這顆彗星告訴我們，宇宙的探索是多麼的令人興奮！
原文:
Discovered on July 1 with the NASA-funded ATLAS (Asteroid Terrestrial-impact Last Alert System) survey telescope in Rio Hurtado, Chile, 3I/ATLAS is so designated as the third known interstellar object to pass through our Solar System. It follows 1I/ʻOumuamua in 2017 and the comet 2I/Borisov in 2019. Also known as C/2025 N1, 3I/ATLAS is a comet. A teardrop-shaped cloud of dust, ejected from its icy nucleus warmed by increasing sunlight, is seen in this sharp image from the Hubble Space Telescope captured on July 21. Background stars are streaked in the exposure as Hubble tracked the fastest comet ever recorded on its journey toward the inner solar system. An analysis of the Hubble image indicates the solid nucleus, hidden from direct view, is likely less that 5.6 kilometers in diameter. This comet’s interstellar origin is clear from its orbit, determined to be an eccentric, highly hyperbolic orbit that does not loop back around the Sun and will return 3I/ATLAS to interstellar space. Not a threat to planet Earth, the inbound interstellar interloper is now within the Jupiter’s orbital distance of the Sun, while its closest approach to the Sun will bring it just inside the orbital distance of Mars.
來源:NASA每日圖片
