In early July 2025, a telescope system designed to spot potential threats to Earth made a surprising discovery. The Asteroid Terrestrial-impact Last Alert System, better known as ATLAS, detected a ...

Astronomers found that interstellar object 3I/ATLAS shows an "extreme abundance ratio" of nickel and iron in its gas plume. Astronomers are still poring over data to get a better sense of 3I/ATLAS, ...