TerraChoice also measured green advertising in major magazines and found that between 2006 and 2009, the number mushroomed from about 3.5% of all ads to just over 10%; today, Case says, the number is probably higher still.
NASA bought hydrogen at 98 cents per gallon. A gallon of liquid hydrogen weighs 0.2679 kg, so they paid $3.66 per kg for liquid hydrogen. NASA bought oxygen at 67 cents per gallon. A gallon of liquid oxygen weighs 4.322 kg, so they paid $0.16 per kg for liquid oxygen. 384,071 gallons of liquid hydrogen in the external tank of the shuttle, for a cost of $376,389.58. ~141,750 gallons of liquid oxygen for a cost of $94,972.50. The total cost of all propellant for rocket fuel is $1,380,000. These numbers exclude the hydrogen and oxygen used for cooling, etc.
(c) SpaceX. Such a rocket, according to Musk, will be capable of being fully ready for launch again 24 hours tops after it last went into orbit, and cost a hundred fold less than it does today to put cargo into space.pace flight for the average people. According to SpaceXâs Elon Musk, $200,000 in fuel and oxygen make up just 0.35% of his firmâs launch costs. The rest is in their $56.5 million Falcon 9 rocket. Musk likens this to throwing away a $300 million 747 after a one way flight.