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 ...

The common use of "tentative" is generally regarded as a negative adjective, roughly synonymous with indecisive. In contrast, it's widely considered to be a strength of science. A major legal decision ...