Assuming our solar system’s newest interstellar object isn’t an alien mothership sent here to menace us, humankind still hasn’t spotted any signs of extraterrestrial life, let alone intelligence — ...

The search for intelligent alien life takes humanity beyond basic microbes into a vast cosmic hunt for advanced civilizations and technological giants across the universe. Exploring planetary, ...

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 ...

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 ...

Scientists are looking for ways to detect alien warp drives lurking in space. While these hypothetical propulsion systems are most famous in science fiction stories like Star Trek, scientists believe ...