Exactly - the expanded atmosphere with a geomagnetic storm can "puff" up the atmosphere. https://www.nasa.gov/mission_pages/sunearth/news/solarstorm-power.html

Exactly - the expanded atmosphere with a geomagnetic storm can "puff" up the atmosphere. https://www.nasa.gov/mission_pages/sunearth/news/solarstorm-power.html https://www.nasa.gov/mission_pages/sunearth/news/solarstorm-... > During the heating impulse, the thermosphere puffed up like a marshmallow held over a campfire, temporarily increasing the drag on low-orbiting satellites. This is both good and bad. On the one hand, extra drag helps clear space junk out of Earth orbit. On the other hand, it decreases the lifetime of useful satellites by bringing them closer to the day of re-entry.