In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.

(cokada/iStock/Getty Images) Alien megastructures built to harvest stellar energy or alter the orbits of stars may be ...

"Nobody else could conduct themselves in that way and it be normal," Rubin said of his former Angels & Airwaves bandmate and ...

In the sci-fi book and now movie Project Hail Mary, astronaut Ryland Grace, played by Ryan Gosling, encounters three ...

Scientists have uncovered a surprising way to study the harsh space weather around young M dwarf stars. Mysterious dips in ...

Americans’ opinion of space exploration is pretty high.

Comet 41P/Tuttle-Giacobini-Kresak has begun acting a little unusually, but there are likely natural explanations before we go ...

Explore the fascinating science and alien life in 'Project Hail Mary,' highlighting Rocky and the star system 40 Eridani.

Trump has ordered a UFO data release. But if aliens exist, what would they think of us? - For generations, human beings have ...

NASA officials have previously spoken of the possibility of extraterrestrial life amid scientific uncertainty while ...

Movies like "Disclosure Day" and "Project Hail Mary" renew our fascination with extraterrestrials and the idea that humankind ...

The ExoLife Finder (ELF) looks like no telescope ever built. A spectacular crown of 15 five-meter mirrors perches atop a ...