Throw logic out the air lock, as many other reviewers here have already noted.
Here's a question: they need more oxygen to survive a 5 month trip to Mars because now they have an extra person breathing it. Never mind that the CO2 scrubber being broken (and they left all the spares back in the garage) is the real issue. Their solution is to bring back one tank of O, filled to 250 LB pressure. We see the tank is maybe 3-4 times bigger than a standard scuba tank. A scuba tank gives you roughly 40 minutes of breathing time. So HOW in the holy name of NASA can this one tank make an appreciable difference? Even chief engineer Mr. Scott couldn't fix this issue.
Here's a question: they need more oxygen to survive a 5 month trip to Mars because now they have an extra person breathing it. Never mind that the CO2 scrubber being broken (and they left all the spares back in the garage) is the real issue. Their solution is to bring back one tank of O, filled to 250 LB pressure. We see the tank is maybe 3-4 times bigger than a standard scuba tank. A scuba tank gives you roughly 40 minutes of breathing time. So HOW in the holy name of NASA can this one tank make an appreciable difference? Even chief engineer Mr. Scott couldn't fix this issue.