When astronomers first spotted the fast-moving object 3I/ATLAS hurtling through the solar system in July 2025, speculation erupted online: was it another ʻOumuamua—or even an alien craft? Months of ...

A mysterious cigar-shaped object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth, astronomers from Harvard University have suggested.

In early July, astronomers spotted a strange, fast-moving object racing toward the Sun. Named 3I/ATLAS, the celestial body immediately caught attention because of its unusual trajectory — one that ...