The universe has quasi-moons, mini-moon, and moonlets, but no official definition of what counts as a moon.

A new study revealed how the ancient Maya used lunar and solar calendars to predict eclipses with remarkable accuracy.

The rare interstellar comet 3I/ATLAS is under intense scrutiny as it passes through the solar system. Spacecraft like Hera, ...

Launched in 1977, the twin Voyager 1 and Voyager 2 spacecraft embarked on a Grand Tour of the outer solar system, a feat made ...

Over the past seven decades, thousands of sophisticated spacecraft have been launched on ambitious missions to look down on ...

Astronomers have discovered asteroid 2025 SC79, a skyscraper-sized space rock orbiting the sun in just 128 days. the ...

Material around Chiron, a small icy world in the far reaches of the solar system, may be taking shape into a ring system of ...

A scientist spotted an asteroid hiding in the sun's glare that orbits the sun in just 128 days, making it the second fastest ...

SpaceX’s delays forced NASA to reopen its moon lander contract. Rivals are circling, Artemis is wobbling, and China’s steady ...

Webb just spotted a carbon-rich moon factory 625 light-years away, revealing how moons like ours may have first taken shape.

Quasi-moons are not real moons and don't actually orbit the Earth, although they sometimes appear to do so for short periods of time, Phil Nicholson, professor of astronomy at Cornell University, told ...

California company Skyeports creates self-healing glass spheres from Moon regolith that generate solar power and support ...