Oxygen has been the most important gas in our search for life among the cosmos thus far. On Earth, we have it in abundance ...

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

Wright-Patterson has played a central role in the US military’s real investigations into mysterious objects in the sky — from ...

Hundreds of mysterious objects have appeared in images captured by the Webb space telescope. The curious dots could reshape ...

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

Salt Lake City Mayor Erin Mendenhall says city resources are already at capacity, calls for federal response by March 27.

Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.

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

Do little green men exist? Was 'Men In Black' a documentary? Prediction markets are pricing the probability of a U.S. government confirmation of alien life before the year 2027. Find out why traders ...