The Search for Extraterrestrial Intelligence (SETI) focuses on finding technosignatures—potential signs of alien technology. If we look carefully, we might have a chance at detecting their ...

Planets that once lived only in pulp novels and movie concept art are now turning up in real data. Astronomers are not just ...

Humans should look to planetary alignments outside of the solar system when searching for signatures of extraterrestrial communications, scientists say. The nascent search for radio transmissions from ...

An ocean world that’s teeming with microbes — and who knows what other kinds of life — is currently the best explanation for some chemical signatures that the James Webb Space Telescope has spotted in ...

Astonishingly, we can identify molecules present in the atmospheres of exoplanets.

Spots were speculated to be everything from alien cities to geysers. — -- Scientists have finally cracked the mystery of the unexplained lights on the dwarf planet Ceres that were speculated to ...

If there's one modern astronomical concept that has successfully permeated the mainstream media, it's the "Goldilocks zone." Not only is it associated with the search for alien life, one of the more ...

A layer of molten rock deep inside some rocky planets may be doing more than shaping their interiors. New research points to ...

The James Webb Space Telescope may have detected life-associated gas in the atmosphere of a far-off planet. The news is being greeted with both... Are there signs of life on alien planet K2-18b, or is ...