Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our ...

Learn how astronomers found the invisible ionized gas that forms puffy halos surrounding galaxies.

The James Webb Space Telescope has given the first ever clear look at a dying star which is over 1,000 light years away from earth in new images.

The stars are surrounded by diffraction spikes, which are the starburst-like radiating lines that appear around bright ...

In 2009, NASA launched the Wide-field Infrared Survey Explorer, or WISE mission, to make infrared observations. This was the latest in a line of space-based, infrared observatories, and it cost about ...

For decades, scientists have known that ordinary matter — everything made of atoms — accounts for just 15% of the universe’s matter. The rest is mysterious dark matter. But even that modest slice didn ...

Astronomers may have uncovered a hidden population of galaxies that could rewrite what we know about the universe's evolution ...

Ostriker is responsible for groundbreaking discoveries that forever changed the way astronomers think about what the universe is made of, including the existence of dark matter.

Astronomers tallying up all the normal matter—stars, galaxies and gas—in the universe today have come up embarrassingly short ...

The James Webb Space Telescope reveals turbulent environments found in Sagittarius C, a core part of our Milky Way galaxy.

Another of the crates features a rustic “undeliverable” Manifest of Supplies returned to the Trading Company. It was meant to ...