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

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

Dark Energy Spectroscopic Instrument completes five-year survey of 47 million galaxies ...

NASA has completed its next space observatory, built to create sharp, panoramic maps of the universe while revealing how the ...

The universe is expanding, and physicists cannot agree on how fast. In a preprint posted in late May 2026, the H0 Distance ...

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

Two billion years after the cosmos banged into existence, a mysterious force known as dark energy began shoving space outward ...

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

Using a new framework, astronomers arrived at the most precise measurement of our universe’s expansion rate—but things still ...

Space, as we all know, is big. In fact, it’s more than big; it’s vastly, hugely, mind-bogglingly big. But how big is that, exactly, and how do we go about assigning actual, quantifiable distances ...