Yes. "At around 400 kilometers and into the 500-km realm — home to ISS and the SpaceX Starlink satellites among others — atmospheric drag plays a major role. D

Yes. "At around 400 kilometers and into the 500-km realm — home to ISS and the SpaceX Starlink satellites among others — atmospheric drag plays a major role. Dead satellites and debris usually slow and burn up in the atmosphere in just a few years. This natural cleansing process accelerates when the sun becomes more active and solar coronal mass ejections strike Earth and cause the atmosphere to swell." https://aerospaceamerica.aiaa.org/features/understanding-the-misunderstood-kessler-syndrome/ https://aerospaceamerica.aiaa.org/features/understanding-the... Still, if the events occur not once in a decade but multiple times a year that could mean trouble for space travel: "Linares sees a potential future where 'humans probably don’t have any incentive to launch satellites, because we’re losing 50% of them' to collisions with debris, he says."