Corrected entry: A human body is mostly composed of water at the right atmospheric pressure. In a vacuum environment, the water will instantly evaporate. Making the astronaut's bodies explode when propelling themselves from Icarus 1 to 2. Otherwise astronauts wouldn't need pressurized suits.
allibyx
1st Jan 2011
Correction: It takes a much greater shift in atmospheric pressure to cause a human body to explode. Google the question and you'll find that most every expert agrees a human being could survive exposure to space for up to 30 seconds with no permanent injury.
Phixius ★