The formation of Mercury remains an unsolved mystery. The planet closest to the sun has a disproportionately large metallic core—accounting for about 70% of its mass—and a relatively small rocky ...

You might have heard of the three-body problem, how there is no exact solution to predicting the behavior of three interacting gravitational celestial bodies under Newton’s laws. The best you can do ...

A study published in the journal Nature Astronomy challenges traditional explanations about the origin of the innermost planet in the Solar System and proposes a more likely scenario. The collision ...