Where Does Hydrogen Come From? In addition to the hydrogen, these clouds are seeded with heavier elements from the stars that lived and died long ago. (Density is mass per unit volume; water's is defined as 1.0 g/cm 3 by convention.) Hydrogen gas is supplied to the anode of the fuel cell. Left: The ISS's first crew -- Bill Shepherd, Sergei Krikalev and Yuri Gidzenko -- aboard the Space Station. Most of the station's oxygen will come from a process called "electrolysis," which uses electricity from the ISS solar panels to split water into hydrogen gas and oxygen gas. Liquefied hydrogen is extremely cold and it can cause severe frostbite when it comes into contact with skin. Hydrogen clouds in the ISM can cool, collapse under the force of gravitation and eventually form new stars. Why there is so little breathable oxygen in space By Ken Croswell May. In the hydrogen economy, there is no storehouse to tap into. One big advantage of this process is that you can do it anywhere. Hydrogen thrusters have a lot of oomph compared to others and the mats aren't difficult to come by. Scientists who study interstellar space use spectrometers to identify trace amounts of other molecules between the stars. There are numerous possible sources for producing hydrogen including: Electrolysis of water – Using electricity, it is easy to split water molecules to create pure hydrogen and oxygen. Additional Gases in Space. When liquid hydrogen absorbs heat, it expands rapidly; thus, venting is necessary to prevent the tank from exploding. We have to actually create the e­nergy in real-time. Whatever the Big Bang was, seconds after it, the universe was filled with an extremely hot and dense quark-gluon plasma. Easily fixed with a popular mod , though. Metals exposed to the extreme cold of liquid hydrogen become brittle. My biggest issue with it is the ridiculously huge tank that really gets in the ways of most builds. The easy answer is that it goes into space. Once the vehicle reaches space, it must be protected from the radiant heat of the Sun. NASA uses hydrogen as rocket fuel to deliver crew to space. The hydrogen was basically a leftover relic, fallout from the Big Bang. NASA engineers have left room in the ECLSS hardware racks for a machine that combines the hydrogen with excess carbon dioxide from the air in a chemical reaction that produces water and methane.

There are two possible sources for the hydrogen: Electrolysis of water - Using electricity, it is easy to split water molecules to create pure hydrogen and oxygen.