Cosmic microwave background

Space Our local universe’s expansion rate doesn’t add up, astronomers find

A new 1% measurement of the Hubble constant strengthens the case that the Universe may not fit the standard model.

Space Richard Feynman explains why our night sky is dark despite trillions of stars Joseph Shavit

Space Groundbreaking new theory rewrites quantum view of the Big Bang Joshua Shavit

Space Ancient Milky Way stars challenge the age of the universe and the Hubble tension Joseph Shavit