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Emble12 t1_jaqgyp9 wrote

Reply to comment by Ballongo in After flying four astronauts into orbit, SpaceX makes its 101st straight landing — ‘I just feel so lucky that I get to fly on this amazing machine.’ by marketrent

Falcon 9 second stage isn’t reusable, though there were some early plans to do so. The problem is that the second stage travels to orbit, so it’s an order of magnitude faster and therefore will hit the atmosphere an order of magnitude harder.

So now second stages are typically burnt up in the atmosphere, or stay in orbit depending on launch trajectories.

Dragon is reused, the veteran Endeavour has flown four crews.

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