What is the biggest object in the universe? Learn more about the biggest objects in the universe, including galaxies, galaxy clusters, and dark matter.

The known universe is full of shockingly huge things. Here are the largest planets, stars, galaxies, and structures we've observed in the universe so far.

In fact, the Euclid Consortium, the international group managing the European Space Agency's Euclid space telescope, just ...

If you thought the cosmic web was tangled enough, think again. A team of astrophysicists recently used gamma-ray bursts—those spectacular, enigmatic explosions of energy from the farthest reaches of ...

The interactive online map, created using data from NASA's James Webb Space Telescope, details some 800,000 galaxies across a vast cosmic distance. Scrolling and zooming in can take users some 13.5 ...

After many hours of staring unblinking at a small patch of sky, JWST has given us the most detailed map ever obtained of a corner of the Universe. It's called the COSMOS-Web field, and if that sounds ...

There are several candidates for the biggest star in the universe. One of them, VY Canis Majoris, is over 1,500 times the width of the sun. If it were placed in our solar system, it would stretch to ...

"The 'missing' matter may truly be lurking in hard-to-see threads woven across the universe." Astronomers have discovered a vast tendril of hot gas linking four galaxy clusters and stretching out for ...

According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density ...

NEW YORK (AP) — The largest digital camera ever built released its first shots of the universe Monday — including colorful nebulas, stars and galaxies. The Vera C. Rubin Observatory, located on a ...

We’ve grown up with the idea that the universe will expand forever, meaning the "cosmological constant" is positive. What if ...

Massive stars have always puzzled scientists—how do they grow so quickly despite fierce radiation pushing material away? New high-resolution ALMA observations suggest that instead of relying solely on ...