Over the next few decades, Elon Musk is hoping to send 42,000 satellites to space. And over the next few decades, Elon Musk is hoping to send 42,000 of these satellites to space, 15 times the number of operational satellites in orbit today. Narrator: Once in orbit, these Starlink satellites will be constantly on the move, which is why so many are necessary. Starlink satellites are bright. But dozens of SpaceX satellites are already disabled and can't move at all, posing a potential threat.