How Serious Is the Universe’s Expansion Problem?
With consistent, impressive leaps in observational technology, cosmology keeps running into all kinds of issues. One infamous problem…
Astronomers Just Nailed Down the Universe’s Expansion Rate… and Now They Have More Questions
One major, unsolved problem in astronomy involves the Hubble constant, a number representing how quickly the universe expands.…
This Telescope’s Final Data Release Just Killed 30 Cosmological Theories
The Atacama Cosmology Telescope (ACT) in Chile spent nearly two decades studying how the universe began, what it’s…