Billions of years ago, so the theory goes, something around the size of Mars smacked into Earth, spewing a whole bunch of dirt into space that eventually coalesced to form the Moon. This is called the ...

Whether it’s under the stars on the Main Green, from smudged dorm windows or through open sunroofs, we see the moon nearly every night. But a new study by Brown researchers suggests that we know less ...

Earth and the moon may look very different today, but they formed under similar conditions in space. In fact, a dominant hypothesis says that the early Earth was hit by a Mars-sized object, and it was ...

The Moon has long been the Earth's close companion, but researchers have struggled to understand exactly when the moon formed, because tiny crystals in the moon rocks brought home by astronauts ...

Sometimes I look at the Moon and realize how little I actually know about it—what it's made of and how it formed. In this video, I explore NASA's Johnson Space Center and their top-secret lab that ...

The largest moon in the solar system — Jupiter’s Ganymede — has a unique and inexplicable magnetic field. New research could ...

A new study makes predictions that future research could test with lunar rocks acquired by China's upcoming Chang'e 6 mission to the far side of the moon. When you purchase through links on our site, ...

A 2.35-billion-year-old meteorite with a unique chemical signature, found in Africa in 2023, plugs a major gap in our understanding of the moon's volcanic history. Presented at the Goldschmidt ...

Long ago, the moon was molten. It was covered by a magma ocean. The moon had just formed, accreting from the debris spewed into space by the violent collision of Earth with a Mars-size planet. Ever ...

Data from India's recent Chandrayaan-3 mission supports the idea that an ocean of molten rock once covered the moon. When you purchase through links on our site, we may earn an affiliate commission.

This composite image of Pluto, right, and Charon, its largest moon, showcases photos captured by NASA’s New Horizons spacecraft in July 2015. Credit: NASA / JHUAPL / SwRI Unlike how scientists believe ...