Our universe is filled with galaxies, in all directions as far as our instruments can see. Some researchers estimate that ...

The Sun is huge, but it's a speck of dust compared to the universe's true giants. This video introduces Stevenson 218, the largest known star, a red supergiant so vast it could swallow our solar ...

"A bit like dinosaurs on Earth — they were enormous and primitive. And they had short lives, living for just a quarter of a ...

While the 21st century has been bumpy, it has also ushered in monumental scientific and technological breakthroughs that have ...

By studying faint distortions in galaxy shapes across a vast region of sky, scientists probed the hidden structure of the universe. In the standard picture of the universe, nearly everything is hidden ...

In Pearl, Mississippi, there exists a bargain hunter’s paradise where wallets remain mysteriously full and shopping carts overflow with treasures – the Goodwill Select Store on US-80 transforms ...

The Hubble tension is especially troubling because it involves two sets of measurements that offer conflicting views of the ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from ...

Galaxy clusters are the most massive objects in the universe held together by gravity, containing up to several thousand ...

“Our latest discovery helps solve a 20-year cosmic mystery,” co-lead author Daniel Whalen from the University of Portsmouth's ...

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

These gigantic structures, which contain hundreds or even thousands of galaxies bound together by gravity, offer important ...