Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of ...

A new study suggests that the explosive deaths of the universe's earliest stars created surprising quantities of water that ...

We like to believe we have a pretty good idea of how things work in our universe. However, the truth is that there is still ...

"The Hubble tension is now a Hubble crisis." The mystery of the Hubble tension has deepened with the startling finding that ...

Discover how researchers found a bizarre black hole feeding at an exceptional rate, challenging theories on black hole growth ...

New research confirms the Universe is expanding faster than theoretical models predict, intensifying the Hubble tension.

Astronomers compile a large sample of an unusual class of objects in an effort to connect the dots to the early universe.

Found less than a billion years after the Big Bang, these massive objects are upending astronomers’ timeline for how early ...

The universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous—and highly ...

This is called the “heat death” of the Universe, but you can think of it instead as the death of heat. There will be no more differences in temperature anywhere, which means thermodynamics shuts down, ...

The Webb telescope — a scientific collaboration between NASA, ESA, and the Canadian Space Agency — is designed to peer into ...