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

All the tools for measuring it in the local, recent Universe give fairly consistent results, around 72 to 74 kilometers per ...

A major international effort has produced an ultra-precise measurement of the Universe’s expansion rate, confirming it’s ...

A new synthesis of astronomical measurements confirms a persistent mismatch that could point to physics beyond current models ...

Trying to measure the size of the universe is no easy task. We know that the universe is expanding, though the exact rate of this expansion is not yet fixed. So one method that astronomers use to tell ...

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 ...

The cosmic distance ladder is the world’s longest ruler, built to measure the universe. Since the time of the ancient Greeks, scientists have been constructing a cosmic measuring tape to measure the ...

The first method involves direct distance measurements from nearby stars and galaxies. In contrast, the second looks further ...

Pasadena, CA — Ohio State University researchers have found a way to measure distances to objects three times farther away in outer space than previously possible, by extending a common measurement ...