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52

Without the descent stage, you have a far less capable lifeboat. Looking at Wikipedia, the ascent stage had two batteries with a total capacity of 592 Amp-Hours (some of which would have been used in the ascent), while the descent stage had four batteries with a total of 1660 Amp-Hours (raised to 2075 Amp-Hours for Apollo 15-17). So most of the power that ...


28

The primary purpose of every Apollo Moon landing mission was to land on the Moon. Once the vehicle had passed safety checks and had made the lunar orbit insertion burn, the next step was to separate the Lunar Module from the Command and Service Module. If these steps did not happen the mission would have been a deemed loss of mission failure. Aside: There's ...


11

Another factor here: The reason the lunar module existed in the first place. The Saturn V was nowhere near powerful enough to send a rocket to the moon and bring it back. It would have taken at least two Saturn V launches to lift something that heavy. This was being a big problem for NASA in mission planning--which was finally solved by the approach NASA ...


3

Possibly the term encompasses many protocols, but at least one effect is detailed here: [Spacecraft Emergency] is a protocol that the Ground Controller (GC), who is responsible for the MCC infrastructure as well as interface to the NASA Space Network, invokes with the Space Network to make sure the ISS gets all available satellite communications assets and ...


2

When some of the crew are outside performing spacewalks, the outer door is open and the inner door is closed. A structural failure of the inner door at this point would result in an explosive decompression. When the crew is inside, at least for the US side of the ISS, the inner door is open and the outer door is closed. There is a brief interval during ...


2

Both doors of the airlock should resist the full pressure difference between vacuum outside and spaceship air pressure inside. During normal use of the airlock both doors are exposed to both the full pressure difference as well as the same pressure on both sides, 100 % of operating pressure and 0 %. The pressure to the outer door is equalized only when the ...


1

I am pretty sure that it has never been tried recreationally or as a demo. An extinguisher would have to be brought to space just for that purpose, since there is no way they would use one meant for safety just for fun. And extinguishers tend to be messy. I don't know what kind they use in space, but again I am doubtful they would discharge one unless it was ...


1

If you look on YouTube (or various other places) you will have no problem seeing people using fire extinguishers to propel office chairs (and other devices). The physics in space is no different - you are basically talking about a rocket, indeed the difference between a water-based fire extinguisher and a water-bottle rocket is pretty trivial.


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