For a world to maintain an atmosphere long enough for life to gain a foothold, it seems it needs to be at least as big as ...

When scientists search for life beyond Earth, Mars usually gets most of the attention. But another world may offer an even ...

For decades, humanity has listened to the cosmos, hoping that somewhere among the stars another civilization might be trying ...

According to popular media, the search for alien life involves advanced technology, space exploration and sometimes even government conspiracies and secret programs. But according to University of ...

The scientist has outlined the 'potentially devastating and irreversible long-term impacts' of unknown organisms in space ...

When you're looking for signs of extraterrestrial intelligence, it helps to know what you're looking for and to go about it in the most efficient way. But work so far has generally not done so, writes ...

Unidentified aerial phenomena (UAPs) have resurfaced at the centre of online discussion after a widely shared interview revisited reports of supposed 'non-human' life linked to recovered unidentified ...

The president promised to spill the beans about little green men. Is that why the US Cybersecurity and Infrastructure Security Agency registered the domains alien.gov and aliens.gov, asks Arwa Mahdawi ...

There are billions of potentially habitable planets out there, so why haven’t we seen signs of life beyond the solar system? Perhaps because the aliens have all destroyed themselves. A new analysis of ...

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

Astronomers have identified GJ 3378b, a super-Earth located 25 light-years away, in the habitable zone of its star, raising interest in its potential to support alien life.