We think of it as rigid, smooth, and unidirectional – the arrow of time flies straight and true, and all we can do is go ...

Once a baffling theory, quantum mechanics has evolved into a driving force behind modern technology and frontier research.

The most precise clocks ever built can now detect gravity’s warping of time across a distance shorter than a pencil tip. That ...

A new theory proposed by researchers at the Stevens Institute of Technology, Colorado State ...

Few concepts in physics are as familiar, yet as enigmatic, as time. In Einstein's theory of relativity, time is not absolute: ...

Add Yahoo as a preferred source to see more of our stories on Google. In 1927, Oppenheimer published a paper called “On the Quantum Theory of Molecules” with his research adviser Max Born. This paper ...

Before Einstein, before Bohr, there was a Jesuit priest with a telescope and a startlingly modern vision of the universe.

For almost as long as Lawrence Livermore has existed, scientists have been experimenting with materials to learn what happens to them under high pressure. In the brief instant of a high-explosive ...

The infamous twin paradox sends the astronaut Alice on a blazing-fast space voyage. When she returns to reunite with her twin, Bob, she finds that he has aged much faster than she has. It’s a ...