A team of astronomers using a variety of ground and space-based telescopes including the W. M. Keck Observatory on Maunakea, ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

If not in visible stars and galaxies, the most likely hiding place for the matter is in the dark space between galaxies.

For much of the twentieth century, scientists expected the expanding universe to slow over time. The opposite turned out to be true. Space is stretching faster today than in the past, and the precise ...

It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial, ...

An immensely powerful flash detected earlier this year was created by a massive star exploding when the universe was just ...

Understanding how the universe transitioned from darkness to light with the formation of the first stars and galaxies is a key turning point in the universe’s development, known as the Cosmic Dawn.

The James Webb Space Telescope found a surprisingly large galaxy, nicknamed "The Big Wheel," in the early universe. This galaxy formed much faster than current theories predict, challenging our ...

Welcome to the latest astronomy space news for December 1, 2025! This month, we’re looking at how galaxies grow, what the ...

The search for the universe’s center starts with a simple intuition: if everything exploded outward in the Big Bang, there must be a point it all came from. Modern cosmology turns that intuition ...

Observing the wonders of the night sky begins with selecting the right telescope. Join us on Nov. 20, 2025, at 9:00 am EST for Astronomy Unlocked: How to Choose Your Best Telescope. This virtual event ...