Motivational and inspirational quotes can pick you up on a bad day and inspire you to even greater heights.

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

"Each morning when I open my eyes I say to myself: I, not events, have the power to make me happy or unhappy today. I can ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still daring to test it. Some theories of quantum gravity suggest light might ...

Most of the exoplanets we’ve discovered have been in relatively tight orbits around their host stars, allowing us to track them as they repeatedly loop around them. But we’ve also discovered a handful ...

As Albert Einstein wrote elegantly about our experience of time and space, he also devoted his days to the process of social transformation: the question of how one world becomes another. He was ...