The Arecibo Message as it appears when its 1,679 bits are properly aligned on a grid (left), an annotated illustration ...

Earth' 5-7 times Earth's mass might lurk in the Kuiper Belt, reshaping our solar system. Planet Nine could explain mysterious ...

November's full moon will be Friday night as the last consecutive supermoon in 2024. It's called the beaver moon, and ...

This illustration shows a red, early-universe dwarf galaxy that hosts a rapidly feeding black hole at its center. Using data ...

This has informed how we think about Uranus ever since, making the planet's history a mystery scientists have been working to solve. There's just one problem, says space plasma physicist Jamie ...