To date, over 5000 exoplanets have been discovered using telescopes on the ground and in space. Credit: NASA/JPL-Caltech ...

The LHS 1903 system defies expectations with a rocky outer planet, prompting new ideas about how planets form and evolve.

3I/ATLAS is not just another comet drifting by. This object likely formed around another star, may be older than our Sun, and ...

We have no idea what kind of life may exist on other planets, so it’s hard to know what to look for. Proxima Kósmos imagines ...

ALMA reveals unusual “alien” water in interstellar comet 3I/ATLAS, showing it formed in an extremely cold, distant star ...

For more than half a century, the search for extraterrestrial intelligence has been built ...

President Barack Obama is very much trying to clarify that he does not think that the U.S. government is hiding the existence ...

Happy Alien Day! And no, not for any supposed extraterrestrial beings watching from the shadows of our solar system, but for ...

"Most planetary systems appear as 'peas in a pod.' This is not the case in the TOI-201 system." ...

The former president swore that if the U.S. government knew about — or possessed — aliens, the information would have already ...

The flight of 3I/ATLAS through the solar system last year was a stroke of luck for research. The water in the object was also ...