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

Today scientists rely on two methods. The first is late-universe observation (or observation of the universe as we see it ...

A difference of a few kilometers per second might not sound like much. In cosmology, it has become one of the field’s most ...

The universe is expanding about 10% faster than it should be, and a fresh set of measurements just made the problem harder to ...

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

When humans look up at the night sky, they naturally ask the question: How far away is that planet, or that star, or that galaxy? Distance is one of the most fundamental measurements astronomers make, ...

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

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

A new measurement confirms what previous — and highly debated — results had shown: The Universe is expanding faster than predicted by theoretical models, and faster than can be explained by our ...

A long-running dispute about how fast our universe is expanding just became even more entrenched. New and more precise measurements of stars in the Large Magellanic Cloud, a satellite galaxy of the ...

How fast is the universe expanding? How much does matter clump up in our cosmic neighborhood? Scientists use two methods to answer these questions. One involves observing the early cosmos and ...