> I wouldn't be surprised if SpaceX will turn out to be the reason we won't be able to explore space at all for a few hundred years. You seem to be referring t

> I wouldn't be surprised if SpaceX will turn out to be the reason we won't be able to explore space at all for a few hundred years. You seem to be referring to the Kessler syndrom. If that happened, it would not mean that we could not send probes to space anymore. It only becomes unviable to have satellites at the altitude of the debris field. We could still launch through it into higher orbits or onto interplanetary trajectories.