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

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

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

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding? Astronomers have tried two main methods to figure it out, but their numbers don’t ...

The new study used the known distance to a galaxy called M106/NGC 4258 — a spiral galaxy in the constellation Canes Venatici — as a reference point. The universe is expanding faster than astronomers ...

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

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

The following is an extract from our Lost in Space-Time newsletter. Each month, we hand over the keyboard to a physicist or mathematician to tell you about fascinating ideas from their corner of the ...

The cosmological constant has been a problem in physics since Einstein, but new research may show why it takes the value that ...

Whatever dark energy is, explanations for it have less wiggle room following a Hubble Space Telescope observation that has refined the measurement of the universe’s ...

Humanity officially expanded its vision to the edge of time today. In a historic maneuver 380 miles above the Earth’s surface ...