Astronomers are tracking a rare visitor known as 3I/ATLAS, the third confirmed interstellar object to enter our solar system. Detected in July 2025, its hyperbolic orbit confirmed that it came from beyond the Sun's influence, offering scientists a rare chance to study material that formed around another star and to compare it with comets native to our own system.
Its unusual chemistry and motion have sparked speculation outside mainstream science. Some commentators have suggested that 3I/ATLAS could be artificial, describing it as an alien mothership. Most researchers, however, say there is no credible evidence for such claims.
