So Nasa wants to liquid Hydrogen and liquid Oxygen for fuel on the cold Moon?
Id still rather go to Titan
- ElanaLv 71 decade agoFavorite Answer
Of course: Combine hydrogen (H2) and Oxygen (O2) to get Water (H2O) plus a lot of energy.
Its true that we currently use much more complex carbon based fuels for rocketry because they are reasonably available on Earth, but we could be using hydrogen and oxygen now. Its just cheaper not to.
If, on the other hand, you want to move around in space, fuels found on Earth are very expensive if you're already in space because it takes fuel to lift fuel off the planet.
If you can get hydrogen and oxygen from the surface of the moon which has a much weaker gravitational force to overcome (1/6th Earth's), it make sense.
It also makes sense because anyone living on Moon will need water and oxygen.
If you had a large supply of water and direct sunlight (which we KNOW is available on the moon), you use the sunlight to generate power with solar cells.
You use that power to separate the oxygen from the hydrogen in the water. You then combine them back together rapidly in a rocket to move, or you use the separated oxygen to breathe (always useful).
- MaureenLv 44 years ago
A couple of points that no one yet has mentioned. The External Tank on the Shuttle provides fuel and oxidiser for the Shuttle Main Engines for the flight from Launch to first orbit insertion ( The circularisation burn is done with the smaller OMS engines whose small fuel supplies are inside the tail of the Orbiber ). Once the Main Engines stop firing at about 8 minutes and 24 seconds after Launch, they're done, and the tank is jettisoned. The ET contains liquid oxygen and liquid hydrogen, as thats what the Shuttle Main Engines burn, because as liquid fuels go, they're the most efficient. Even so, in that 8 min 24 sec, the Main Engines pretty much empty that huge External Tank. Oxygen for life support is contained within the Orbiter, and doesn't in any way rely or connect to the ET. Within the Orbiter, the atmosphere is pretty much sea level air, 14.7 PSI, 80% nitrogen and 20% oxygen.
- Antonio DLv 61 decade ago
Because both elements are what compose water...and there maybe water on the moon...Juice water with electricity...and it can be sep. into hydrogen...a good fuel...and oxygen...we breath oxygen....Take Care Good Luck....PS...same thing with Mars