> Also in this video of a rocket ship, why is there some gas leaking out of the sides?
There’s a lot going on, and not many people are privy to the details. ( So this is mostly educated guess )The fast puffs are cold gas reaction control thrusters, the puffs concurrent with engine shutdowns are probably part of the shutdown procedure, e.g. purging propellant lines. The big sustained puff… maybe just dumping propellant that’s not going to be needed.
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