The underground ocean on Saturn's moon Enceladus is providing astronomers with tantalizing hints of life-friendly conditions in the solar system.
Oceans account for 70 percent of the home planet's surface, but reliable maps exist for only 7 percent of the ocean floor. XPrize and Shell are offering up $7 million to change that.
Elon Musk, Sam Altman, and other tech titans have invested $1 billion in a nonprofit that would help direct artificial intelligence technology toward positive human impact.
A group of researchers have developed new lie-detecting software, and it doesn't involve being hooked up to a polygraph machine.