Add Yahoo as a preferred source to see more of our stories on Google. The James Webb Space Telescope's deep field image shows a universe full of sparkling galaxies. NASA/STScI Astronomers have known ...

The Universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous -- and highly debated -- results had shown: The Universe is expanding faster than predicted by ...

Astronomers have proposed a new theory to suggest why our universe is expanding at an accelerating rate. That our universe is expanding is in wide agreement, though how exactly that process happens is ...

Dark energy may have switched directions sometime in the distant past — and this violent transition may explain why cosmological observations aren't adding up, researchers propose in a new paper. The ...

But as astronomers have studied these distances, they've learned that the universe is not just expanding – its rate of expansion is accelerating. And that expansion rate is even faster than the ...