For every galaxy that's visible from Earth, there are nine smaller ones that we can't see, even with all the technology we've ...

Gold, uranium, and other heavy elements on Earth did not form here. They were born in the violent deaths of massive stars and the collisions of neutron stars, traveling across the galaxy before ...

Scientists have detected the most distant supernova ever seen, exploding when the universe was less than a billion years old.

Nearly 4.5 million years ago, two enormous, blazing stars swung close to the solar system. They did not touch the sun, but they came close enough to leave a permanent mark on the thin mist of gas that ...

What can imaging supernovae (plural for supernova) explosions teach astronomers about their behavior and physical characteristics? This is what a recent study published in Nature Astronomy hopes to ...

A new study shows how Milky Way chemical tracks emerge from shifting star formation and gas supply, reshaping ideas about the ...

Beyond better testing, we need better protection. Physical shields seem like the obvious first defense. Hydrogen-rich materials such as polyethylene and water-absorbing hydrogels can slow charged ...

Illinois residents may be able to catch a peek of the first full moon of 2026 tonight. Here's when to venture outside.

A record-bright LFBOT exposes violent encounters between black holes and stars, helping astronomers understand extreme black ...

A dozen luminous blue outbursts were thought to be unusual supernovae. A new outburst, the brightest yet, suggests it's ...

An immensely powerful flash detected earlier this year was created by a massive star exploding when the universe was just five percent of its current age, astronomers said Tuesday. The flash was ...