I think I knew this somewhere in the storage closet of my mind but never thought about it before. Did you realize that the
International Space Station is constantly falling out of orbit and needs constant
boosts to stay up there? Yup. And these can only be done by
supply ships that visit every so often; the station doesn't have it's own engines to keep it circling the Earth.

Here's a chart from the very useful
Heavens Above site showing how far it's fallen in recent days and how much they've had to push it back up.
No comments:
Post a Comment