Intelligent alien life has remained elusive despite decades of searching the skies, but new technologies and ideas are ...

The SETI Institute recently began searching for signs of advanced extraterrestrial civilizations in distant galaxies outside our own. The research comes at a time when the notion that strange crafts ...

Astrobiologist Lisa Kaltenegger spends her days building miniature worlds. Kaltenegger and her colleagues study how different species and combinations of bacteria, plants, and fungi change the ...

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 ...