3 ms·
> The second stage burn is largely above the atmosphere so its contribution to greenhouse warming is negligible Won't it just fall back to earth?
by StavrosK 7y ago
> The second stage burn is largely above the atmosphere so its contribution to greenhouse warming is negligible
Won't it just fall back to earth?
- xbdobd 7y agoInteresting question, I don’t know the answer, but why would a gas fall back down to Earth? Wouldn't it expand to fill in the volume? On the other hand the jet is angled downward (or opposite the direction of increasing orbital energy) so I guess it does fall down. But when it hits the upper atmosphere, wouldn’t it break apart into its constituents by the UV? I dunno!