Steven Spielberg’s sci-fi adventure-mystery about the possibility of aliens on Earth stars Emily Blunt, Josh O’Connor and Colman Domingo Tyson has “no reason to doubt” there’s non-human species out in the universe,

Billions of years ago, another planet smashed into Earth. An event of this epicness could have created our Moon. It also could have brought alien life to our planet. What evidence of this planet still exists on Earth today?

To travel between solar systems, a spacecraft would need extremely sophisticated – if not impossible – technology.

As UAP files are declassified and Disclosure Day hits cinemas, physicists argue that any aliens capable of reaching Earth would become 'time exiles' who can never truly go home.

EVE HEWSON: (As Jane Blankenship) What are you going to do? O'CONNOR: (As Dr. Daniel Kellner) Full disclosure to the whole world. FLORIDO: It is the latest film that Spielberg has directed about aliens visiting Earth. Of course, there are many other films ...

American Religious Belief in Extraterrestrial Life (Princeton Univ., Sept.) argues that several American religious traditions have long believed in that aliens exist—and want to help us.

Astronomer Jon Willis warns that alien signals could be passing Earth unnoticed because humans are searching on the wrong scales, with the wrong assumptions about life and intelligence.

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life.