For scientists, that has long posed a problem: According to physicists’ best current theories, matter and its counterpart, ...

If you think a galaxy is big, compare it to the size of the universe: it's just a tiny dot which, together with a huge number ...

Mathematical quirks of our universe have led some cosmologists to wonder whether the cosmos was actually born in a black hole ...

Here’s a mind-blowing thought: what if our entire universe is actually inside a black hole? Some scientists think it’s ...

Recent progress on both analog and digital simulations of quantum fields foreshadows a future in which quantum computers ...

It will be a view unlike any other — completely invisible, exceptionally quiet and utterly transformative. Deep in the first moments of the Big Bang, the entire cosmos shook and rumbled. Those quakes ...

The James Webb Space Telescope has found a lonely black hole in the early universe that’s as heavy as 50 million suns. A ...

Here’s what you’ll learn when you read this story: A backward, mirror universe could explain the existence of dark matter. If an anti-universe exists, it would run backward in time, before the Big ...

New computer simulations suggest the first magnetic fields that emerged after the Big Bang were much weaker than expected — ...

A monster galaxy from the early universe shows that the cosmos was rich with oxygen when it was only less than 3% of its present age, astronomers have found. The discovery raises questions about how ...

From our tiny part of space, it can be hard to image exactly how much is out there beyond the reaches of our solar system. But in reality, our Earth is just a tiny part of our solar system, itself ...