Using a new framework, astronomers arrived at the most precise measurement of our universe’s expansion rate—but things still ...

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

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A difference of a few kilometers per second might not sound like much. In cosmology, it has become one of the field’s most ...

One of the remarkable scientific discoveries of the past several decades is that the universe and earth appear fine-tuned for ...

A novel theory suggests that the current expansion rate of the universe is not fixed, but was in fact quite different in the early universe—and that the universe could start contracting at some point.

The collective gravity of countless neutrinos gently irons out the wrinkles in the cosmic web, preventing matter from clumping together too quickly. It’s a bit like a shower of tiny, almost ...

The James Webb Space Telescope (JWST), launched in 2022, continues to reshape how we view the cosmos. Designed to look deeper into space and further back in time than any previous instrument, it has ...

Here’s what you’ll learn when you read this story: Scientists have recently used an updated understanding of the math of our universe to theorize that the universe will end in a crunch rather than ...

For almost as long as humans have existed, we have been trying to make sense of the cosmos. What started as philosophical musing has, following the advent of the telescope and the ability to look ever ...

There may not be as nearly as many small galaxies in the early universe as astronomers predict there should be, which has big implications for the story of how our universe grew up. When you purchase ...