IMAGES of an unusual pyramid-shaped structure on Mars that look like those in Egypt have reignited wild theories about aliens ...

A strange formation spotted deep within a massive Martian canyon is once again fueling debate over whether something more ...

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

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

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

This scene imagines the mysterious beauty of alien worlds beyond our solar system. The landscape features unusual plant life, towering organic structures, and glowing vegetation surrounding calm water ...

By Will Dunham WASHINGTON, March 16 (Reuters) - Astronomers have spotted a planet orbiting a star in our neighborhood of the ...

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.

Screenwriter Drew Goddard rejoined "The Martian" writer Andy Weir and fought to preserve the author's vision: "Whenever ...

An alien-themed "micro resort" just minutes from Utah's Zion National Park has landed back on the market with a $1.49 million price tag. The commercially zoned compound, which was originally listed ...

A team of amateur citizen scientists have made a significant discovery. They found huge gigantic radio circles in the deepest ...