To understand how chaotic the early solar system was, we need only gaze at the moon. Its cratered surface bears the scars of multitudes of collisions. The early solar system was like a debris field ...

Hit-and-run collisions between embryonic planets during a critical period in the early history of the Solar System may account for some previously unexplained properties of planets, asteroids, and ...

From chaos we all began, and to chaos we’ll all return, but not for a very, very long time — 5 billion years or so, more or less. In the journal Nature on Thursday, two French scientists, using arcane ...

A recent theory has emerged suggesting that the answer to Mercury’s unusually large metallic core may lie in the early history of our solar system. This theory proposes that a soft collision between ...