A half century after NASA's Apollo 17 lunar module lifted off the moon's northeastern near side quadrant, planetary scientists still don't completely understand when or how our moon first formed. They ...

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 ...

We already know a decent amount about how planets form, but moon formation is another process entirely, and one we're not as familiar with. Scientists think they understand how the most important moon ...

The story of creation, whether of worlds or moons, has long fascinated humanity. For decades, most scientists agreed that the Moon was born from a violent collision between Earth and a Mars-sized body ...

A crucial difference in the “fingerprints” of Earth and the moon confirms an explosive, interconnected past Within the first 150 million years after our solar system formed, a giant body roughly the ...

The findings suggest that similar moonlets could orbit distant exoplanets and their moons. researchers said. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

“There’s a huge difference between the modern elemental makeup of the Earth and Moon and we wanted to know why,” said NASA planetary scientist Justin Simon. “Now, we know that the Moon was very ...

The moon reaches its last quarter phase on Tuesday at which point the lunar face is half illuminated by the light of the sun. This phase falls halfway between the full moon and the new moon. A new ...

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 ...