When astrobiologists are asked what aliens might look like, many now point not to distant galaxies but to some of the ...

Billions of years ago, another planet smashed into Earth. An event of this epicness could have created our Moon. It also ...

The United States government's recent release of hundreds of previously classified unidentified anomalous phenomena (UAPs) ...

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

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