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.

They show up as a mathematical solution in general relativity, basically as a time-reversed version of a black hole. Some ...

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

Einstein–Rosen bridges may reflect a two-directional structure of time that preserves information and hints at a pre–Big Bang universe.

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

Faint structures play a crucial role in cosmic development, and scientists are only just beginning to grasp their full extent and role in shaping the universe.

Astronomy does not belong off Earth. It belongs wherever the universe can be observed — and that necessarily includes the surface of the planet humans live on. Kelsey Johnson: Past President of the ...

The Rubin Observatory in Chile has the largest camera ever built – and is set to find objects never before seen by human eyes ...

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

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

Astronomers have confirmed a bright galaxy called MoM-z14 that already existed just 280 million years after the Big Bang.

A physicist proposes that the universe is not empty space, but is a viscous fluid, fueling the expansion and contraction we see.