Re:SpaceX just got FCC approval to launch 7,518 satellites
by Rooster61 on Thursday November 15, 2018 @05:31PM
(#18464095)
> Satellites don't collide with each other, it has never happened.
Actually, they do, and it has indeed happened before (https://en.wikipedia.org/wiki/2009_satellite_collision). Far from a Kessler syndrome scenario, but certainly something that should be examined.
Satellites do collide with debris, but that's a different issue. Furthermore, they don't need a guarantee that they can be put into a graveyard orbit - the proposed satellites (and even any debris, if they'd explode for whatever reason) will be in a graveyard orbit from day one until they stop being pushed up and deorbit.