Stephen Wolfram, inventor of the Wolfram computational language and the Mathematica software, announced that he may have found a path to the holy grail of physics: A fundamental theory of everything.

It’s a pity that Matt Ridley dismisses basic science (“The Myth of Basic Science,” Review, Oct. 24). Without the very abstract general theory of relativity, your GPS navigation system wouldn’t work.

Physicists have developed a promising new way to identify a possible abnormality in a fundamental building block of Einstein's theory of relativity known as "Lorentz invariance." If confirmed, the ...

Metabolic rates can determine how much food an organism needs and how quickly it can convert that food into growth. Scientists have long suspected the reason mice populations grow faster than elephant ...