A cosmic visitor is stirring up an earthly debate. A Harvard University astrophysicist has suggested the incoming interstellar object 3I/ATLAS could be an alien probe. But NASA and most astronomers ...

Did an alien spacecraft just fly by Earth? That’s the question a lot of people, including Harvard astrophysicist Avi Loeb, are asking right now. A massive interstellar object called 3I/ATLAS which ...