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

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

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

If you look across space with a telescope, you’ll see countless galaxies, most of which host large central black holes, ...

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

Molecules containing noble gases shouldn’t exist. By definition, these chemical elements — helium, neon, argon, krypton, xenon and radon — are the party poopers of the periodic table, huddling in the ...

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 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 ...

A stronomers using the JWST have traced the source of a long-duration gamma-ray burst back to a supernova that exploded ...

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

Our best theory of the universe might be breaking apart! The new data we're receiving from space telescopes is creating more ...

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 ...