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 ...

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

The Dark Energy Spectroscopic Instrument (DESI) has successfully completed the largest high-resolution 3D map of the universe ...

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

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

Each year, tens of thousands of visitors, mostly Texans from the bigger cities, trek up the mountains to attend “star parties ...

That light is then fed into spectrographs that split it into its component colors, allowing scientists to calculate how far ...

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 ...

An international team of at least 45 astronomers, including researchers from Inter-University Centre for Astronomy and ...

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