Black holes are mysterious objects, and one theory posits that our universe exists inside of one. It sounds strange, but ...

The early universe is absolutely so far outside our understanding of how the world works it's hard to describe in words. Back ...

Did primordial black holes born during the Big Bang swallow the universe's antimatter, allowing matter to dominate the cosmos ...

There are other ways of making these mindless eating machines, as well, including smashing neutron stars together, letting ...

A blazing supermassive black hole can influence far more than its own galaxy. Scientists found that quasars emit radiation strong enough to shut down star formation in nearby galaxies millions of ...

Ever since it began its operations in 2022, the James Webb Space Telescope has come across supermassive black holes from the early universe that had grown too big, too fast to be explained by existing ...

Some things in cosmology may simply be unknowable. Why is there something rather than nothing? What lies outside the universe? What is inside a black hole? That last one has been niggling at ...

A view of the central region of the Perseus galaxy cluster, one of the most massive objects in the universe, shows the ...

Between May 2023 and January 2024, a global network of gravitational-wave detectors picked up 128 new cosmic signals, more ...

How astronomers used gravitational lensing, a space-time trick predicted by Einstein, to detect a black hole measuring 30 ...

The following is an extract from our Lost in Space-Time newsletter. Each month, we hand over the keyboard to a physicist or mathematician to tell you about fascinating ideas from their corner of the ...

A new study published in Nature presents one of the most complete models of matter in the universe and predicts hundreds of massive black hole mergers each year observable with the second generation ...