Earth’s Moon may have formed intact within five hours of a giant impact 4.5 billion years ago, as new modeling reveals the ...

The moon could have formed in a matter of hours following the giant impact between Earth and a Mars-size protoplanet early in the history of the solar system. The theory comes from new simulations ...

Scientists have discovered that the Moon-forming collision may have depended heavily on how hot and physically strong early Earth and Theia were. New simulations found that some impacts create the ...

How did the Moon form and how fast did it happen? This is what a recent study published in The Astrophysical Journal Letters hopes to address as a team of scientists investigated a potential new ...

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 ...