From an infinitely dense, infinitely small speck of space, the entire universe emerged, and, ever since the Big Bang, space has been growing—expanding and cooling, producing matter and ...

Through it all, the Universe has been expanding and cooling, something it's been doing since the earliest moments of the hot Big Bang. But the Big Bang wasn't the very beginning of the Universe.

Given that our Universe has been around for billions ... and appears to be expanding and cooling in all directions, there appear to be fascinating possibilities for what might arise in the future.

It has been expanding and cooling ever since. Matter formed and coalesced into the galaxies, which are observed to be moving away from each other. Background radiation in the universe is ...

James Webb telescope helped solve a decade-long mystery about the universe’s expansion rate, shedding new light on the cosmic ...

Fresh evidence suggests that the universe is expanding faster today than it did in its infancy, a difference that has set off a search to understand what cosmic forces could be at play.

The realization that our universe is expanding is one of the most transformative discoveries in cosmology. While once hotly debated, this observational reality now forms the bedrock for our modern ...

The universe is constantly expanding—at an ever faster rate. “When we say that the universe is expanding, we mean something pretty literal,” says Dan Scolnic, an associate professor of ...

Far enough into the future, say, 10 100 years from now, what we call the Universe will consist of an expanding bath of subatomic particles slowly cooling on their way to absolute zero. This is cal ...

Astronomers have known for decades that the universe is expanding. When they use telescopes to observe faraway galaxies, they see that these galaxies are moving away from Earth. To astronomers ...