Learn more about the supernova, which is more than a billion years older than the previous record-holder.

In a glimpse of the early universe, astronomers have observed a galaxy as it appeared just 800 million years after the Big ...

For much of the twentieth century, scientists expected the expanding universe to slow over time. The opposite turned out to ...

The universe’s expansion might not be accelerating but slowing down, a new study suggests. If confirmed, the finding would upend decades of established astronomical assumptions and rewrite our ...

Astronomers are closing in on a result so statistically secure that, in their language, it borders on certainty: a 99.9999999 ...

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

Depending on how you look at it, the universe might not have an "end," after all.

By studying faint distortions in galaxy shapes across a vast region of sky, scientists probed the hidden structure of the universe. In the standard picture of the universe, nearly everything is hidden ...

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

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.

A virtual event, "Astronomy Unlocked: How to Choose Your Best Telescope," is scheduled for November 20, 2025, at 9:00 am EST, designed to provide a comprehensive guide to selecting astronomical ...