The Hubble Space Telescope has imaged a "200,000 light-year-long trail of newborn stars" that may have been left behind by a ...

A NASA animation has sized the biggest black holes known to scientists, including one that has the mass of 66 billion Suns.

A newly detected X-ray transient may reveal the first direct evidence of an intermediate-mass black hole consuming a white dwarf. A newly observed cosmic outburst is giving astronomers a rare glimpse ...

It’s a regrettable reality that there is never enough time to cover all the interesting scientific stories we come across ...

Numerical relativity uses supercomputers to simulate conditions occuring at the start of the universe, answering some of the ...

The NASA/JAXA X-ray spacecraft has allowed astronomers to dive into the metaphorical "eye of the storm" swirling around supermassive black holes.

A subtle gravitational-wave “hum” from merging black holes may help settle the cosmic fight over how fast the universe is ...

Black holes that turn matter into energy could explain dark energy and answer two other cosmic questions. Now, the challenge ...

A new computational simulation of the early universe has revealed a fundamental, unbreakable geometric limit to the fabric of spacetime, dubbed the "Metric Wall." Discovered by independent physics ...

University of Oregon astronomer Yvette Cendes made a surprising discovery years after a black hole shredded a star. What is ...

A fluffy cluster of stars spilling across the sky may have a secret hidden in its heart: a swarm of over 100 stellar-mass black holes. The star cluster in question is called Palomar 5. It's a stellar ...