3I/ATLAS is definitely a comet, not an alien spacecraft, but it is only the third confirmed interstellar object detected in our solar system, and may be as much as 7 billion years old, so it is still ...

Astronomers used the Green Bank Telescope to search interstellar Comet 3I/ATLAS for signs of alien technology but found none. The study confirms the object behaves like a natural comet. Researchers ...