qbert@xxxxxxxxxxxxxxx wrote: > These maybe some dumb questions, but, 1) does this mean that they > will be venting all the time if the don't get the rocket to relight? And 2), > does > venting present a danger to satellites or other rockets, considering it's > fuel? As others have mentioned, venting spent tanks is customary and expected; the greater danger is leaving them sealed; they might (e.g.) become overpressurized in the sun and eventually burst. The vented liquids and vapors are much less of a hazard to other craft than fragments from a burst tank might be. -dave w