Tiny, orange glass beads discovered on the moon during the Apollo era may reveal an untold history of lunar volcanism.

When astronauts finally reach Mars, they'll face a unique challenge: walking and working in gravity that's only 37% as strong ...

The first images of an artificial solar eclipse from ESA's Proba-3 mission have been unveiled. Total solar eclipses are rare, ...

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

A new landmark study has pinpointed the location of the universe's "missing" matter, and detected the most distant fast radio ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

The Proba-3 mission, consisting of two spacecraft that fly in close formation to study the sun, has returned images of the first ever artificial solar eclipse ...

A cosmic leviathan stirs across the great, quiet expanse of the early universe. About 12 billion years old, a supermassive ...

Astronomers have found a remarkably powerful jet shooting out from a black hole that formed just 3 billion years after the ...