I’ve spent much of my long life studying — and trying to understand — the history of the universe. Along the way, I have been constantly reminded that science is essentially international: Science ...

This unprecedented view of the Bullet Cluster provided by the James Webb Space Telescope and the Chandra X-ray Observatory ...

One fascinating discovery was the detection of vast clouds of gas extending far beyond the main star-forming regions. These ...

Unusually fast-moving gas clouds near a nearby galaxy suggest they may have come from outside the galaxy. Scientists have ...

The ALMA Observatory, one of the world’s most advanced astronomical facilities, has uncovered unprecedented details about the ...

By studying what makes the Milky Way unique, astronomers are hoping to understand our galaxy’s past and unravel the mystery ...

Galaxies have an overall internal motion called disk velocity. It’s how gas, dust, and stars move around the galactic center.

When it comes to star formation, not all galaxies are the same. Some are quenched, meaning they've depleted their star ...

Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

Astronomers have used the Atacama Large Millimeter/submillimeter Array (ALMA) to peer into the early universe and uncover the ...

Cosmic archeologists have used the James Webb Space Telescope to excavate ancient disk galaxies that tell the story of how ...