Scientists believe that 3I/ATLAS, a rare comet, is likely not alone and that more interstellar objects may soon be discovered.
Astronomers have detected 3I/ATLAS, the third confirmed interstellar object in our solar system, and expect to find more with advanced detection methods.
Such discoveries are likely, and visits from interstellar objects may be more common than previously known.
Author's summary: Comet 3I/ATLAS approaches Earth, possibly with others.