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In Europa Report, two of the astronauts (James and Andrei) are coming to the end of a space walk (and are low on air) when there's an emergency in the form of an explosion. Andrei finds a tear in his suit and is rapidly losing consciousness. James' suit is contaminated with hydrazine. He is advised to avoid re-entering the ship as doing so would contaminate its atmosphere presumably putting everybody else at risk. He therefore chooses to send his colleague back in and is stranded in space (and dies).

Now,

  1. What happened to James' tether? Wasn't it Andrei who was untethered?
  2. Couldn't they have used the airlock to switch suits or if there were no suits, flood it with air and rescue Andrei first? Hydrazine exposure does not appear to be (immediately) fatal.
  3. Couldn't a third astronaut have helped James after Andrei had been rescued?

Considering the general attention to detail in the movie, I'm questioning the realism of this scene.

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I found this particular scene the most unbearable (among quite a few actually) of the bunch. 1. While engaged in repairs, astronauts on EVAs use sophisticated hand tools to remove spaceship parts for the very reason jagged pieces could pierce a hole in their suit and the unfortunate die a relatively quick death of oxygen deprivation or having his/her blood boiled away from the difference in a pressurized suit and the zero pressure of deep space. 2. While hydrazine is present in varying part of a craft (used mainly for reentry thrusters as the compound is very volatile), couldn't the writers ha –  user7604 Jan 13 at 22:13
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(comment continued from @user7604) - have had one of the characters voice a concern over this event before it happened? It would've gave added credence to the veracity of why it was present to begin with. 3. Hydrazine if very nasty material. Highly toxic, it causes irritation of the eyes, nose, and throat and gives way to dizziness, headache, and nausea. And that's just short term. The liquid is highly corrosive and can do heavy damage to the lungs, liver, spleens, and thyroid. –  iandotkelly Jan 14 at 14:41
    
Also, WHERE did the Hydrazine come from? –  Bobby Alexander Oct 13 at 2:23

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