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

Megaprojects' like huge solar farms could be visible from great distances.

We have no idea what kind of life may exist on other planets, so it’s hard to know what to look for. Proxima Kósmos imagines ...

Aristotle's views on the nature of the cosmos dominated the Ancient Greek world. He argued that there's only one world, at ...

Anthropic’s Claude agents outperformed human researchers and produced “alien science,” raising new questions about AI ...

Explore how cutting edge telescopes, AI, and new detection methods are transforming the extraterrestrial life search and ...

Chinese scientists' claims that their "Sky Eye" telescope could have picked up signals from intelligent aliens have been met with skepticism by an American colleague. Dietitians say you shouldn't take ...

This video looks at an alien species whose design, biology, and lore feel far more developed than what most science fiction worlds attempt. An eclectic, bipartisan group suddenly calls for removing ...

Scientists have uncovered a surprising way to study the harsh space weather around young M dwarf stars. Mysterious dips in starlight turned out to be massive rings of plasma swirling in the stars’ ...

The LHS 1903 system defies expectations with a rocky outer planet, prompting new ideas about how planets form and evolve.

From lava tubes on Mars to ice pockets on Europa, subterranean environments may offer the best chance of finding life—and ...

Add Yahoo as a preferred source to see more of our stories on Google. A NASA astronaut recently sent the internet into a frenzy when he posted an alien-looking photo on social media. The photo posted ...