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

Einstein's theory of general relativity views time similarly to width, height, and length. As such, both time and space can be curved by gravity. This effectively means that time is slower the closer ...

Laments about the state of education are arguably as old as education is, or close to it. And they’ve always been a waste of time. That’s because knowledge isn’t bestowed on us as much as it’s created ...

Do you know what connects Edwin Hubble’s theory for an expanding universe and Albert Einstein’s cosmological constant? The ...

Astronomers have finally watched a black hole do something Albert Einstein only described on paper: twist the very fabric of spacetime around it. The new observations capture a spinning monster ...

Time dilation: It’s a staple of science fiction, and whether you’re familiar with the term or not, you’ve probably encountered it in print or film. Fly fast enough to the speed of light, and your ...