Quasicrystals are orderly structures that never repeat. Scientists just showed they can exist in space and time.

An astrophysicist explains what wormholes are and how these theoretical space-time tunnels have popped up in the solutions to a set of decadesold equations.

The shape of the cosmos depends on a balance of two competing forces: the pull of gravity and the expansion driven by dark ...

The puzzle Einstein and Rosen were addressing was never about space travel, but about how quantum fields behave in curved spacetime. I ...

Gravity used to be the most dependable rule in the cosmic rulebook, the quiet background force that never changed its mind.

For the last 25 years, most scientists have believed that about 70% of the universe is formed by something called ‘’dark ...

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

The science communicator, a disciple of Stephen Hawking, believes it will be decades before we colonize Mars. But he says we ...

Wormholes are often imagined as tunnels through space or time — shortcuts across the universe. But this image rests on a misunderstanding of work by physicists Albert Einstein and Nathan Rosen. In ...

With the universe constantly expanding, scientists have a hard time finding where its center is. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a misunderstanding of work by physicists Albert Einstein and Nathan Rosen. In 1935, ...