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

DURHAM, N.C. — Our cosmic neighborhood is revealing an uncomfortable and unexplainable truth: the universe seems to be breaking the speed limit set by our best physics models. By precisely measuring ...

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.

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

NASA has released an eerie audio clip of sound waves emanating from a supermassive black hole in the Perseus galaxy cluster, ...

Dark energy is still a mystery, but powerful new telescopes are set to uncover clues. With NASA and ESA leading the charge, ...

Featuring the world’s largest digital camera, the Vera C. Rubin Observatory will capture these mysterious phenomena in more ...

Supermassive black holes can fuel their own growth by cooling and recycling gas, creating a continuous cycle of feeding and outbursts. The central regions of galaxy clusters host the universe’s ...

Abell 370, a galaxy cluster located nearly 4 billion light ... we’ve gained from studying red supergiants in the local universe to interpret what happens next for them at such an early epoch ...

The universe's rapid expansion baffles scientists, with conflicting Hubble constant measurements hinting at new physics or ...

New measurements reveal the Coma Cluster is 38 million light-years closer, worsening the Hubble tension crisis and challenging cosmology models.