From the stars in our backyard to galaxies billions of light-years away, astronomers use a 'cosmic distance ladder' of methods to map the universe. Now, a global team has unified Hubble constant ...

A comprehensive new study combines decades of research to reveal that we're missing an essential component in our ...

The most precise measurement yet shows the Universe is expanding faster than expected, deepening the Hubble tension. 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 ...

Cepheid variable star RS Puppis pulses with a regular period. (NASA, ESA, Hubble Heritage Team; Howard Bond/STScI & Penn State U.) The most precise measurement yet of how fast the Universe is ...

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 ladder provides information that can ...

An international team of astronomers has produced a precise measurement of the universe’s current expansion rate, strengthening evidence around one of modern cosmology’s major unresolved questions.

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 ladder provides information that can ...

Observations don’t match the predictions of the standard model—and it’s not just a fluke.

(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 ...

The team reports the universe’s current expansion rate at 73.50 kilometres per second per megaparsec, with an uncertainty of ...