Recent discoveries on Mars have sparked excitement in the scientific community as NASA’s Mars Reconnaissance Orbiter (MRO) ...

In most photos, the surface of Mars looks like an empty red wasteland. But if you look a bit closer, the remnants of an ...

Sumerian civilization appears to have evolved in Southern Mesopotamia around 4000 BC, while some historians place it as far ...

At a famous 1950 lunch among physicists, Enrico Fermi wondered, "Where are all the aliens?" How far have we come toward ...

Studying how extraterrestrials might communicate could help prepare for first contact and also hint at the point of language ...

A new suggestion that complexity increases over time, not just in living organisms but in the nonliving world, promises to ...

I n February 1905 at around 10 o’clock at night, Henry James arrived in Palm Beach. He’d had a long trip — “the railway run from Jacksonville to Palm Beach begins early and ends late,” he writes in ...

But if aliens were building their own society, would they have to go down the same path as humanity, relying on fossil fuels to build their advanced civilization? Or could they find an alternative?

In a blog post, Loeb ponders how advanced the artificial intelligence of hypothetical alien civilizations could have possibly grown—especially civilizations that might have already been around ...

Out of the 261 people deported, 137 were removed under the Alien Enemies Act, a senior administration official told CBS News, the BBC's US partner. This broad, centuries-old law was invoked by ...

Are we really alone in the universe, or are aliens just patiently waiting for ... and whether they are advanced planet-hopping civilizations or microbes quietly doing what microbes do on a nearby ...