When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Earth’s history has been shaped by five mass extinctions—catastrophic periods when life changed so dramatically that entire ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Ancient deep-sea organisms suggest movement, sexual reproduction, and complex animal life began earlier than previously thought.

You might think that legendary sci-fi author Arthur C. Clarke would've adored the Star Trek franchise, but that wasn't ...

From mosquitoes to bed bugs, parasites have always stuck close to humanity, and they continue to shape our lives to this day, ...

Stars Reach is the new MMO from Ralph Koster, creative lead on Star Wars Galaxies, and it is a fully physically simulated sci ...

Harvard astrophysicist Avi Loeb argues 3I/ATLAS and other interstellar objects may hint at alien technology, drawing fame, funding, and fierce criticism.

From The Thing to Blade Runner, Aliens to Tron, these ’80s sci-fi classics prove practical effects can still outshine modern ...

Some frogs have evolved features so strange that scientists struggle to explain them, and a few look less like amphibians ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...