A solar-powered airliner is still a distant dream, but IATA knows that pushing the boundaries of technology will be necessary to help clean up air travel.

The company is also dreaming larger, more distant space dreams. This model shows how inflatable structures could be used for a lunar settlement.

Many people daydream of an invisibility cloak like Harry Potter's and three graduate students in optics from Nanjing University of Aeronautics and Astronautics have actually invented one.