Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House scientific advisory council on UFOs.

He’s at it again. A wave of unusual posts from Donald Trump on Truth Social has drawn intense public attention after the president shared a series of AI-generated alien images and futuristic war-themed visuals, all while his administration advances the ...

Add Yahoo as a preferred source to see more of our stories on Google. Alien Day was this past Sunday (April 26), and to celebrate one of the best sci-fi horror franchises of all time, HBO Max has just added the special editions of the first four Alien ...

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of biology because they are often produced by living microbes. However, scientists can be misled because certain geological processes can produce chemical signatures identical to those of living organisms.

When Neil deGrasse Tyson was 9 years old, he visited the Hayden Planetarium for the first time. Growing up gazing into light pollution in the Bronx, he had no idea there were that many stars. “I was starstruck,” Tyson says, of that first visit.