A mysterious interstellar object, 3I/ATLAS, has sparked debate among scientists. Harvard astrophysicist Avi Loeb suggests it ...

Sending the Juno spacecraft to investigate a newly-discovered interstellar object that a professor suggested could be "alien ...

British scientist Stephen Hawking was publicly adverse to sending messages into space to attract aliens, with comments ...

Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" ...