The universe's expansion means its size is bigger than its age suggests. The universe's expansion doesn't have a speed limit like objects within it. Distant galaxies move away from us as space itself ...

Explore big discoveries that have revolutionized our understanding of the universe. How big is the universe? Will it ever end? Why is so much of it made of mysterious dark matter and energy? See how ...

Astronomers have reconstructed nearly nine billion years of cosmic evolution by tracing the X-ray glow of distant clusters of galaxies. The analysis supports the standard model of cosmology, according ...

Here’s what you’ll learn when you read this story: A new hypothesis from physicists at the University of Portsmouth in the U.K. challenges the long-standing Big Bang Theory as the ultimate origin of ...

Some of the faintest objects ever observed suggest that small galaxies get the credit for clearing the ‘fog’ pervading the early cosmos. Astronomers have used the James Webb Space Telescope (JWST) to ...

Chris Hemsworth, Alzheimer's and why Hollywood is suddenly obsessed with caregiving Canada’s Economy Starts to Buckle Under ...