中文翻譯:
在遙遠的宇宙中，有一顆非常特別的彗星，它的名字叫做3I/ATLAS。這顆彗星是在智利的天空中被找到了，它是第三顆從外太空來到我們太陽系的物體。之前有2顆，第一顆叫作1I/ʻOumuamua，第二顆是2I/Borisov。3I/ATLAS 看起來像個彗星，因為它周圍有一個很大的氣體雲，這個氣體雲可愛極了，就像是一個圍繞著冰心的花環。科學家們用大望遠鏡觀察它，發現它正在天上快速地移動，留下一道美麗的身影。這顆彗星的路徑非常特別，它不會回來，會繼續往外太空飛去。3I/ATLAS 現在距離太陽很近，但它不會威脅到我們地球哦！它會在靠近太陽時，接近火星的距離。你們想不想跟這顆特別的彗星一起去太空探險呢？
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 clearly a comet, its diffuse cometary coma, a cloud of gas and dust surrounding an icy nucleus, is easily seen in these images from the large Gemini North telescope on Maunakea, Hawai‘i. The left panel tracks the comet as it moves across the sky against fixed background stars in successive exposures. Three different filters were used, shown in red, green, and blue. In the right panel the multiple exposures are registered and combined to form a single image of the comet. The comet’s interstellar origin is also 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 within the orbital distance of Mars.
來源:NASA每日圖片
