随后，詹姆斯·韦布空间望远镜与SPHEREx空间望远镜的数据联合提供了远超可见光图像的信息。 分析显示，星体的彗发中含有大量二氧化碳，而彗核附近则呈现出水冰的特征。 NASA太阳系小天体首席科学家汤姆·斯塔特勒指出，它表现出典型彗星的升华行为，但二氧化碳与 水的比例与太阳系彗星有所不同，这一特征值得进一步研究。 从左上图顺时针方向依次为：10月15日和16日，欧洲空间局与美国国家航空航天局的SOHO任务观测到 的3I/ATLAS；9月16日，"露西号"航天器观测到的3I/ATLAS；9月11日至25日，STEREO-A航天器拍摄 的图像组合而成的3I/ATLAS；以及10月9日，火星轨道探测器MAVEN观测到的3I/ATLAS。图片来源： 美国国家航空航天局 自今年夏天神秘的彗星3I/ATLAS闯入太阳系后，人们对它的猜测和好奇就从未停歇。这颗高速掠 过火星轨道的星际来客，以超过每小时24万公里的速度掠过火星轨道，拖着厚厚的尘埃和冰雾进入人类 观测视野。 3I/ATLAS是有记录以来人类观测史上的第三颗"星际访客"。由于它的高速和神秘外形，过去几 周，社交媒体上关于"外星母舰闯入太阳系"的传言不断发酵。 当地 ...

Core Viewpoint - The article discusses the discovery of the interstellar object 3I/ATLAS, which has sparked debates regarding its nature, with some scientists suggesting it could be an alien probe disguised as a comet, while others maintain it is a typical interstellar comet [1][3][23]. Group 1: Discovery and Characteristics - 3I/ATLAS was discovered on July 1, 2025, by the ATLAS telescope in Chile, marking it as the third confirmed interstellar visitor to the solar system [5]. - The object is estimated to have a diameter of 10 to 20 kilometers, with some estimates suggesting it could be as large as 40 kilometers [6]. - Its trajectory is characterized by a high eccentricity of approximately 6.2, indicating it is on a hyperbolic path, which is atypical for solar system bodies [5]. Group 2: Anomalies and Theories - Avi Loeb, a Harvard professor, proposed six anomalies regarding 3I/ATLAS that challenge traditional comet models, suggesting it might be an alien spacecraft [13][19]. - The anomalies include its large size and brightness, the absence of cometary gas features, an unusual orbital path, and the timing of its closest approach to the Sun [13][15][16][18]. - Loeb emphasizes the need for the scientific community to consider all possibilities regarding the object's nature, rather than hastily categorizing it [23]. Group 3: Scientific Community Response - The mainstream scientific community, represented by researchers like Darryl Seligman, largely views 3I/ATLAS as a comet, citing observed cometary activity and characteristics [21][22]. - Seligman argues that the initial size estimates were based on assumptions of inactivity, and that further observations may reveal more about its gaseous emissions [22]. - The debate highlights the importance of open-mindedness in scientific inquiry, with calls for improved observational capabilities to study such interstellar objects [24].