How did life begin on Earth? While scientists have theories, they don't yet fully understand the precise chemical steps that ...

Since Viking 1 landed in 1976, humans have studied Mars from afar, relying on rovers and orbiters to analyze the planet. But ...

It has been claimed that because most of our DNA is active, it must be important, but now human-plant hybrid cells have been ...

Sci-fi anime has always been a time capsule. From the late 1970s through the early 2000s, creators were obsessed with ...

"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

A quiet confession from Zosia exposes how the Others crossed Carol’s boundaries, turning a fragile romance into a catalyst ...

Futurist Michio Kaku sees humans doing ballet on Mars and projecting their brains into the cosmos. And aliens? Oh, they're ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

People who believe they've been abducted by aliens have always resided at the farthest fringes of science, and the recent claim by a UFO cult known as the Raelians that they had cloned a human being ...

Why have disclosures from government officials about non-human intelligence been met with silence? Psychology explains the ...

On Jan. 9, 1800, a strange boy wandered out of the woods and into the small village of Saint-Sernin in the South of France. Clad only in the torn remnants of a shirt, he appeared wholly untutored, ...