Manhattan-size interstellar object appears to emit its own light

Astrophysicist Avi Loeb suggests that the interstellar object 3I/ATLAS may be much smaller than previously thought, with its nucleus—rather than reflected sunlight—dominating its glow. Based on its unusual trajectory and brightness, Loeb speculates it could be a nuclear‑powered spacecraft, possibly of alien origin, though he notes this is highly uncertain. He urges NASA to have the Mars Reconnaissance Orbiter and the Juno spacecraft observe the object during upcoming flybys, the New York Post has reported. NASA currently classifies 3I/ATLAS as a comet.