This is the first spacetime to be written down in which a warp-drive is not required to have exotic negative energy. That one ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...

For more than a century, Einstein’s relativity has set a hard speed limit for the universe, with light as the ultimate ...

This puzzle is known as the problem of time, and it remains one of the most persistent obstacles to a unified theory of ...

I've been trying to explain quantum physics, forces, relativity, and space-time to my kid and we had a question that I'm finding difficult to find a solid answer to. Background you can skip if you ...

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

The original version of this story appeared in Quanta Magazine. At the beginning of time and the center of every black hole lies a point of infinite density called a singularity. To explore these ...