Author Arthur C. Clarke, whose science fiction and non-fiction works ranged from the script for "2001: A Space Odyssey" to an early proposal for communications satellites, has died at age 90, ...

Some of these approaches may show promise, but new research indicates much of today’s AI is even more easily duped by false ...

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

With new technologies come new opportunities. And that is especially true in astronomy—with every new advanced telescope, we ...