One of the oldest unsolved riddles in planetary science concerns the origin of the moon. Over a century ago, George Darwin ...

An artistic rendering of a dust and gas disk encircling the young exoplanet, CT Cha b, 625 light-years from Earth. Spectroscopic data from NASA’s JWST suggest the disk contains the raw materials for ...

For decades, scientists have held to the idea that the Moon was formed by a single, massive impact 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 ...

"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 ...

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 ...

The history and formation of the moon has puzzled astronomers for centuries. Now, researchers have shown that our planet's largest satellite is 40 million years older than previously thought, helping ...

Astronomers have taken a step towards understanding how the Moon might have formed out of a giant collision between the early Earth and another massive object 4.5 billion years ago. Scientists led by ...

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 ...

Even though humans have pondered the moon since the first of us looked skyward, there is still much we still don’t know about it. One of these unsolved questions is its origin story. We think the moon ...

Apollo samples provide evidence: Researchers analyzed Moon rocks brought back by the Apollo missions and, for the first time, used their iron isotope ratios to trace where Theia originally formed.