And, like every American who's getting hit at the gas pump, NASA wants to spend less on fuel. In the new budget, they approach that problem in two ways. The first is by paying for the development of an in-orbit refueling system. This could significantly increase the lifespan of currently existing satellites, and save NASA the time and money required to launch a new mission every time something runs out of gas. Additionally, NASA is allocating more funds to programs that would make fuel out of materials already found on the Moon and Mars. By only having to bring half the fuel for the trip, and gassing up with material found at the destination, NASA hopes to significantly cut the cost of interplanetary exploration.