Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern anxieties than the past itself?

Evidence of alien life or cosmic pyramid scheme? A documentary filmmaker sparked a discussion of advanced Martian ...

A civilization capable of interstellar travel may also be one that has moved beyond conquest, excess and ecological ...

If intelligent life should be common in a universe with hundreds of billions of galaxies, why does the cosmos remain eerily silent? This video explores the famous Fermi Paradox and the Kardashev Scale ...

Aliens: "Sorry, you're cutting out!" The post Something May Be Scrambling Alien Messages, NASA-Funded Research Finds appeared ...

Astronomers propose finding alien civilizations by searching for unusually cold stars that could be surrounded by Dyson swarms—energy-harvesting structures first proposed by Freeman Dyson.

Welcome to Mamdaniville, where octogenarian veterans are pushed onto train tracks by demented illegal alien career criminals.

I have a very strong suspicion that we are not alone here on Earth right now,” the filmmaker said during a keynote interview ...

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern anxieties than the ...

For four decades, many SETI experiments have focused on finding sharp spikes in frequency but the new study says signals may not stay narrow as they travel away from their home system.

Scientists have uncovered a hellish “lava world” where temperatures soar to a blistering 2,700 degrees Fahrenheit — hot ...