Interstellar comet 3I/ATLAS is exhibiting unusual behavior, glowing green due to diatomic carbon and hiding its tail after passing the Sun. China’s Tianwen-1 orbiter captured images, while some researchers, like Avi Loeb, speculate about its non-cometary characteristics and potential alien origins. 3I/ATLAS, an interstellar object believed to be a comet, recently passed its closest point to the sun.