The Shape of The Solar System Has Changed Dramatically, Scientists Say

The shape of the Solar System was once a little more on the doughy side. Before it arranged itself into a flattened disk, the distribution of dust and rocks had more in common with a donut than a pancake. This is the conclusion scientists reached after studying iron meteorites from the outer Solar System, finding that they can only be explained if the Solar System's shape was once toroidal. This is information that can help us interpret other emerging planetary …