Ancient Milky Way stars challenge the age of the universe and the Hubble tension
The oldest stars in the Milky Way are forcing a fresh look at one of cosmology’s biggest arguments.…
Astrophysicists Propose New Method to Measure Hubble Constant
Astrophysicists from the University of Illinois and the University of Chicago have developed an innovative method to measure…
Scientists develop a new way to measure the expansion rate of the universe
For years, cosmologists have argued over a simple question with an awkward answer: How fast is the universe…
What a rare lensed supernova could mean for measuring cosmic expansion
A burst of light in the deep sky is doing something it should not be able to do.…
A cosmic anomaly suggests we need to rethink the shape of our universe
In recent years, Nobel Prize–winning physicist James Peebles, one of the main architects of the standard cosmological model,…
New independent measurements of universe expansion rate deepen cosmic mystery : Kauai Now
A team of astronomers using a variety of ground and space-based telescopes — including W. M. Keck Observatory…