Astronomers have discovered the brightest and most distant "megamaser" to date. The cosmic energy beam is shooting toward ...

Ripples in the fabric of space-time called gravitational waves may be the key to solving the Hubble tension — one of the biggest nagging problems in physics.

The Vera C. Rubin Observatory has started releasing its first discoveries: including supernovae, variable stars and asteroids ...

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

The researchers said that the "hydroxyl gigamaser" was generated by the merger of two galaxies some 8 billion light-years away.

A recent study which was published in arXiv has found a hug celestial body in space has been reversing its spin and essentially traveling backwards in time.

Cosmic voids are different. These vast expanses contain very little matter. In such places, the vacuum of space-time itself becomes the dominant component. If you were positioned at the center of a ...

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

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.

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, ...

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.

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