By using paired, offset optical combs and RF electronics, researchers devised a unique atomic-clock architecture.

We won’t see a prototype or concept this year, and next year might be too soon, the automaker's head of planning Cooper ...

It's not a matter of "if," but "when" a smaller truck will join Toyota’s U.S. lineup. Long before Ford launched the popular ...

Scientists have analyzed ancient DNA and compared more than 400 fossils from 17 natural history museums to figure out how and why extinct sloths got so big.