In 2008, the National Academy of Sciences put forth a textbook-ish definition of "science": "The use of evidence to construct testable explanations and predictions of natural phenomena, as well as the ...

Not sure about how to spell lightsaber or war? You need the Historical Dictionary of Science Fiction, a free online tool for sci-fi terms. What do you really know about terms like warp drives and ...

If you're a science fiction fan who enjoys getting lost in internet rabbit holes, may I suggest the Historical Dictionary of Science Fiction? The site—newly revamped by Jesse Sheidlower, formerly of ...

One thing nerds like to argue about is what nerds are allowed to argue about. If you agree to stipulate that science fiction is often one of those things—and, hey, we could argue about that—then a ...

WHAT is the difference between astronomy and astrology? That’s easy: astronomy is the scientific study of celestial objects, while astrology is a load of hokum. Anyone with the most basic ...