The findings, published in The Astrophysical Journal Letters, account for the material strength of the two colliding worlds ...

New computer simulations suggest that an intact Moon could have been captured within hours of a giant collision between early Earth and a Mars-sized body. The study is a proposal about one possible ...

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 ...

Treating ancient Earth and Theia as solid geological bodies transforms simulations of the collision that may have created the ...

A new scientific study is challenging ideas about how quickly the Moon formed, with researchers suggesting it may have taken only five hours.

New simulations suggest the moon may have formed almost instantly after a giant impact, not slowly from a debris disk.

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 ...

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 ...

Many of the most interesting bodies in our Solar System aren’t planets, but the moons that orbit them. They have active volcanoes, hydrocarbon oceans, geysers, and moon-wide oceans buried under icy ...

For 50 years, models of the Moon's origin assumed it assembled slowly from a debris disk. Simulations that correct a key ...