Scientists have long believed that the Moon was formed by a massive object crashing into the Earth. But what was that thing ...

"During the early solar system's game of cosmic billiards, Earth was struck by a neighbor,” said Dauphas. “It was a lucky shot. Without the moon's steadying influence on our planet's tilt, the climate ...

Scientists have gone back and forth about explanations for the moon's formation for decades, with the general consensus being that it formed during some type of cosmic collision between Earth and a ...

The formation of the Moon may have come harder on the heels of Earth's birth than we thought. According to a new analysis by researchers from the US, France, and Germany, Earth's constant companion ...

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 ...

Discover how scientists have used iron isotopes to determine the likely origin of the Mars-sized planet named Theia.

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.

Little is known about the long-destroyed moon-forming planet, Theia. But it may have been born in the inner solar system—just like Earth—a new study suggests ...

Apollo samples provide evidence: Researchers analyzed Moon rocks brought back by the Apollo missions and, for the first time, ...

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 ...

According to researchers, the composition of a planet or celestial body holds the entire story of its formation and origin.

"This finding may reinvent the understanding of chemical components, geography episodes and the history of the moon." When you purchase through links on our site, we may earn an affiliate commission.