Researchers believe the “quasi-satellite” has accompanied Earth since 1957.

A new study suggests lunar soil contains elements that solar wind transported to the moon from Earth’s atmosphere, solving a long-standing astronomy puzzle.

What’s different about this 10-day test flight is not only that it returns astronauts to the vicinity of the moon for the first time in more than 50 years but it will give those astronauts a unique vantage point of Earth’s moon.

The familiar gray face in our night sky is not as passive as it looks. New research suggests the moon has been quietly collecting particles from Earth’s upper atmosphere for billions of years, turning our closest neighbor into an archive of our planet’s changing air and oceans.

Crystals hidden in Australia’s oldest rocks have revealed new clues about how Earth and the Moon formed. The study suggests Earth’s continents didn’t begin growing until hundreds of millions of years after the planet itself formed.

What can you see when you look up?

That would make it thousands of times more massive than any moon orbiting a solar system plane  — so massive it could make astronomers reconsider what constitutes a moon. The extra-solar planet, or " exoplanet ,

A rare total lunar eclipse on Mar. 3 will bring a 58-minute “blood moon” to North America. It’s the only total lunar eclipse of 2026 — and last until 2028.