There are some that are so big they will always make it through, and some that are so small they will never make it through, but there’s actually a very large middle area where there are too many variables to know. For example, things like the size, shape, composition, structure, speed, and angle of entry into the atmosphere are all factors, so there’s no one single line where you say on this side it will burn up and on the other it will impact.
Latest Answers