The most precise measurement of the expansion rate ever made suggests an unknown force may be affecting the universe.

The most precise measurement yet of how fast the Universe is expanding shows we have a real and serious problem on our hands.

Artist’s interpretation of the cosmic distance ladder — a succession of overlapping methods used to measure distances across the Universe, where each rung of the ...

A spectacular cosmic event nicknamed “SN Winny” could help solve one of astronomy’s biggest mysteries: how fast the universe is expanding. This rare superluminous supernova, located 10 billion ...

(Nanowerk News) An international collaboration of astronomers has produced one of the most precise measurements yet of how fast the local Universe is expanding. The result deepens one of the most ...

A difference of a few kilometers per second might not sound like much. In cosmology, it has become one of the field’s most stubborn problems. An international team of astronomers has now delivered one ...

Schematic of the expansion of the universe from the big bang (starting on the left side) to the present day. We have known for several decades that the universe is expanding. Scientists use multiple ...

Using a new framework, astronomers arrived at the most precise measurement of our universe’s expansion rate—but things still don’t add up, they say. Reading time 3 minutes One major, unsolved problem ...

Physicists at the University of Illinois Urbana-Champaign and the University of Chicago have developed a new method for measuring the Hubble constant, the number that defines how fast the universe is ...

Scientists have known for decades that the universe is expanding, but research in the past few years has shaken up calculations on the speed of growth -- raising tricky questions about theories of the ...