As the universe expands, it feels like it must be spreading out from some initial point. But a physicist explains why that’s ...

In 1925, Edwin Hubble's observation of Cepheid variables in the Andromeda galaxy revolutionized astronomy, proving the ...

The team explores one of the greatest discoveries of modern astronomy - that our universe is expanding - and the new questions it raises about how the cosmos works. The team explores one of the ...

The universe exists because matter and antimatter are not good friends. Is there a scientific reason why the universe exists?

Here’s how it works. Astronomers using James Webb Space Telescope (JWST) data have discovered a massive chain of at least 20 closely packed galaxies from the early universe, and it could reveal ...

A new AI-powered method is changing how scientists measure the universe. Developed by researchers at the Flatiron Institute and their partners, this technique offers a far more accurate way to ...

(CNN) — New hints from one of the most extensive surveys of the cosmos to date suggest that mysterious dark energy may be evolving in ways that could shift how astronomers understand the universe.

What was the universe like in the first few hundreds of millions of years after it came into existence? How did the first ...

A monster galaxy from the early universe shows that the cosmos was rich with oxygen when it was only less than 3% of its present age, astronomers have found. The discovery raises questions about how ...

New supercomputer simulations suggest the Milky Way could be surrounded by dozens more faint, undetected satellite galaxies—up to 100 more than we currently know. These elusive "orphan" galaxies have ...

Near-infrared images from the James Webb Space Telescope revealed five early universe galaxies merging within a large halo.