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 civilizations after sharing footage that appeared to depict a “three-sided pyramid” on ...

Anastasia, District 9, Inglourious Basterds, Never Let Me Go, and more make up our list of alternate history movies better ...

The images that recently have gone viral actually date back to 2001.

Like the lead character of “Project Hail Mary,” some scientists are proposing ways that life might exist beyond a star’s “habitable zone,” often considered the gold standard of potential livability ...

There's more evidence that water once flowed on Mars with the discovery of an ancient river delta deep below the surface.