In an effort to bring together the domains of gravity and quantum theory, Albert Einstein and Nathan Rosen proposed a ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

Einstein’s Theory of General Relativity is currently our best approximation of how the universe ticks. But there are holes.

From Nara, Einstein and Elsa traveled overnight by train “from 6 p.m. to 6 a.m.” to Hiroshima Prefecture. In the early ...

The Princeton that Albert Einstein knew in 1933 was sharply divided by the color line; a long-established border—marked by ...

Because the moon has less gravity than Earth does, time passes slightly differently there. This effect was first predicted by ...

There is a tendency to imagine genius as smooth and uninterrupted. As if the great thinkers moved from one insight to the next without pause. Albert E.

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...

The man was the smartest person on the planet. On his birthday, why not celebrate by quoting him and sounding brilliant?