Astronomers have long struggled with a troubling puzzle: a significant portion of normal matter in the universe appeared to ...

Planets spin, stars spin, and galaxies spin. So maybe the universe is also spinning. This is what a team of researchers has ...

The James Webb Space Telescope has just observed the oldest dead galaxy, that is, one in which the birth of new stars has ...

A slowly spinning universe could resolve a puzzle in physics known as the Hubble tension, a new model suggests.

Mysterious dark matter makes up 85 percent of matter in the universe, and of the remaining 15 percent, scientists couldn’t ...

A blob of gas seen outside the Milky Way could be a type of starless, dark matter–dominated galaxy. Some scientists are skeptical.

In “Cosmic Splendor,” Van Cleef & Arpels charts the stars and its archives with more than 60 celestially inspired high ...

Who knew that magnetic fields could be so useful? Astronomers are able to use magnetic fields to map our environment within ...

The discovery was made on a massive exoplanet known as K2-18b that for years has captivated scientists searching for life ...

Amid harsh cuts, the Trump administration has proposed canceling the nearly ready-to-launch Nancy Grace Roman Space Telescope ...

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding?

"We've always known that we need something to complete the puzzle, but we haven't really known what shape or form those ...