feed logo The Conversation
6 months, 1 week ago (2025-07-22 20:09)

Could the latest ‘interstellar comet’ be an alien probe? Why spotting cosmic visitors is harder than you think

By Sara Webb, Lecturer, Centre for Astrophysics and Supercomputing, Swinburne University of Technology
On July 1, astronomers spotted an unusual high-speed object zooming towards the Sun. Dubbed 3I/ATLAS , the surprising space traveller had one very special quality: its orbit showed it had come from ou ...