The renowned physicist explains why science shouldn't be scary.

Secretary Bretano had me look into upgrading the missiles for the Aegis system," the physicist explained.

As physicists usually explain it, these additional dimensions aren't evident because they are curled up too small to detect.

Nor can physicists explain in any quantitative detail why the universe consists of matter and not antimatter, its bad-twin opposite.

Maybe someday physicists will explain it.

Over the last couple of decades, this less familiar reading of Einstein's equation has helped physicists explain why everything ever encountered has the mass that it does.

A copiously illustrated book in which the physicist explains breakthroughs that have occurred since he wrote "A Brief History of Time."

This disparity is called parallax, and it is most visible at close focusing distances, for reasons any physicist can explain.

If only physicists could explain neutrinos, maybe they could explain the universe.

You need a physicist to explain it, but you get used to it.