The organic molecules could come from life or from ordinary chemistry — only samples returned to Earth can settle it.

In 1877, an Italian astronomer mapped faint lines on Mars and called them canali, meaning channels or grooves. But the word ...

A new survey of hundreds of astrobiologists reveals that, despite NASA's high-profile declarations about Mars and exoplanet K2-18b, most experts do not yet think alien life has probably been found.

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

A Stanford scientist's model suggests many small rocky planets can't sustain atmospheres, potentially explaining the scarcity ...

Gregg Araki’s sex comedy I Want Your Sex owes debt to sexploitation satirist Russ Meyer, animator Tex Avery, and pornography.

Science fiction has thrived in literature over the last half a century, thanks to masterpieces like Hyperion and The Hitchhiker's Guide to the Galaxy.

Discover six hard sci-fi films where science shapes story and emotion, like Europa Report and The Martian. Brainy, emotional, ...

Gregg Araki’s sex comedy I Want Your Sex owes debt to sexploitation satirist Russ Meyer, animator Tex Avery, and pornography.

As NASA prepares for long-term moon bases, scientists are working on how to grow food in lunar soil and deal with razor-sharp ...

If someone told you there’s a place in Wisconsin where the landscape looks like it was borrowed from another planet, you’d ...