Is it possible to understand the universe without understanding the largest structures that reside in it? In principle, not ...

At double the width of our Milky Way galaxy, this jet of radio waves is the biggest ever detected so early in the universe's ...

"This process is like a cosmic CT scan, where we can look through different slices of cosmic history and track how matter clumped together at different epochs." ...

The universe is vast, a size beyond what many of our imaginations can deal with, but modern technology helps shine a light.

New James Webb Space Telescope observations of a star cluster called NGC 346 are shedding light on how, when and where ...

The model starts with a description of space that is expanding ... we observe in the cosmic microwave background, the leftover light pattern from when the universe was only 380,000 years old.

Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New findings risk turning the tension into a crisis, scientists say.