It’s looking less and less likely that the Hubble tension is a result of observational errors.
Muons help explore physics beyond the Standard Model
Enhanced experimental precision has the potential to either confirm or dispel uncertainties surrounding the Standard Model of Physics.
Time ran slowly in the early Universe, just as Einstein predicted
Using quasars as ticking cosmic clocks, scientists took a journey back in time, discovering time progressed five times slower just after the Big Bang.
New theory of gravity rethinks the Big Bang
A new approach to understanding gravity helps eliminate some discrepancies inherent in general relativity.
Galaxy clusters help confirm the Standard Model of Cosmology
Comparing simulated X-ray emissions from galaxy clusters to real observations provides support for the Standard Model of Cosmology.
General relativity may need tweaking on the grand scale of the Universe
Conflict between theory and observational evidence suggests a missing ingredient in our understanding of the early Universe.
Is the Universe running out of stars?
Astronomers are discovering that the rate of star formation in the universe is dropping, and they want to know why.
Our universe might have two layers
Using bilayered graphene, physicists explore the possibility that our reality is only one half of a pair of interacting worlds.
Steven Hawley: “I’ve always enjoyed the progress we made”
Astrophysicist and retired NASA astronaut Steven Hawley takes us through his fascinating career.
What scientists hope to learn with the new James Webb Space Telescope
The new James Webb Space Telescope will collect infrared light from distant corners of the cosmos, enabling scientists to see further than ever before.