3I/ATLAS is an interstellar object—specifically the third confirmed interstellar body observed passing through our Solar System. It was detected in 2025 by the ATLAS survey in Chile and is designated 3I/ATLAS, with alternative naming as C/2025 N1 (ATLAS). It follows an unbound, hyperbolic trajectory, indicating it originated outside the Solar System, and it is not expected to pose a threat to Earth. Scientists generally categorize it as a comet, given signatures such as a dusty coma and outgassing, though its exact composition and activity are still being studied as it moves away from the Sun. The object is not expected to become visible to the naked eye, though occasional instruments or spacecraft monitoring may capture data as it passes through perihelion vicinity.