The universe has two kinds of matter. There is invisible dark matter, known only because of its gravitational effects on a ...

An international team of scientists led by astronomers from the University of Wisconsin–Madison has produced the most ...

Decades ago, astronomers estimated that “ordinary” matter (basically everything that isn’t dark matter or dark energy) makes ...

A pair of European satellites have created the first artificial solar eclipses through precise and fancy formation flying.

Astronomers have discovered semi-heavy water ice around a young sunlike star, reinforcing theories about the origins of water ...

Your blood is also red because of a mixture of iron and oxygen in a molecule called hemoglobin. So in a way, the ancient connection between the planet Mars and blood wasn’t completely wrong. Rust, ...

"Fast radio bursts shine through the fog of the intergalactic medium, and by precisely measuring how the light slows down, we ...

Exceptionally powerful X-ray jets have been detected emanating from two supermassive black holes. These cosmic structures ...

A vast, glowing halo enveloping a galaxy cluster has been discovered, defying expectations and pointing to turbulent cosmic ...

Scientists have discovered mysterious radio signals emerging from deep beneath Antarctica's ice - and have no idea what's ...

Some strange radio signals are broadcasting out of Antarctica's ice, and the researchers who found them don't know why.

A ground telescope in Chile detected cosmic polarization signals, confirming the universe’s first stars' timeline.