Our solar system has some very odd planets and odd placements of planets. For example gas giants like Jupiter have been found to be more often be closer to the parent star where as Jupiter does not fit that trait. Then we have the unusual tilt of Uranus for which we continue to find the answer to. via IFL Science: by Alfredo Carpineti Unlike every other planet in the Solar System, Uranus orbits on its side at an unusual 98-degree tilt. Models have shown that a catastrophic collision may have caused this feature. Those same models, though, can't recreate the distribution and composition of the moons and rings surrounding Uranus, long puzzling astronomers. A new paper in Nature Astronomy tackles these questions by having the impactor to be a planetoid between one and three times the mass of Earth, mostly made of water ice. Astronomers believe a collision with a small icy planet is key to explaining the distribution of moons and rings around the planet, as well as its peculiar tilt. In