Scientists suggest that advanced aliens might not have physical bodies, challenging traditional views of extraterrestrial ...

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...

From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

A Catholic nun is sounding the alarm over the growing fascination with aliens, warning that alleged encounters could have ...

A Stanford scientist's model suggests many small rocky planets can't sustain atmospheres, potentially explaining the scarcity ...

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer ...

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 ...

You’ve traveled thousands of light-years through interstellar star systems. And now you’re stranded on a planet you know nothing about. As long as you’ve got oxygen, water and food aboard your ...

The long-running series in which readers answer other readers’ questions comes up with an epic extraterrestrial playlist for Earth’s first contact from beyond the stars ...