Observations show the universe appears flat, yet its true size and global shape beyond the observable horizon may remain forever unknown.

About 13.8 billion years ago, the origin of the universe began with the Big Bang. Scientists say all space, time, matter, and energy emerged from a tiny, dense point. Today, the universe is still ...

A new three-volume study explores how quantum physics, gravitation and cosmology may be understood within a unified ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA's James Webb Space Telescope is helping scientists make discoveries that could alter theories about the universe's origins.

What is dark energy? Why does dark energy seem to be weakening? Is our universe part of a larger multiverse? What lies beyond the boundary of a black hole? The universe seems to be rotating, and if ...

There are dark places out there in the deep universe, vast Saharas hundreds of millions of light years across, empty except for a stray hydrogen atom or a bit of radiation. They are the cosmic voids, ...

The universe is expanding faster and faster, but not all scientists agree that dark energy is the cause. Perhaps, instead, our universe keeps colliding with and absorbing smaller 'baby universes,' a ...

"It would be amazing if a simple rotation of the universe was the origin of dark energy." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.