I was ready to go to the barricades for Pluto until I heard there are two or three even larger bodies in the same debris cloud. They can’t all be planets, so…. (One of the criteria for a true planet is that it must have cleared out its orbit of space crud.)
I was ready to go to the barricades for Pluto until I heard there are two or three even larger bodies in the same debris cloud. They can’t all be planets, so…. (One of the criteria for a true planet is that it must have cleared out its orbit of space crud.)