The first prototype of the new airships is expected to make its maiden voyage next year while scientists leading the project predict airships capable of carrying hundreds of tonnes of cargo at a time will be available by the end of the decade.
Using materials and aerodynamics knowledge gained from the space-race, engineers at NASA are helping to develop a new generation of airships they believe will replace lorries, trains and even cargo ships for carrying goods around the world.
Also good for major disasters as they can move lots of people and food to other places. This is when it is handy to have a few military bases around the world in other countries!