When you think about hydrogen and flight, the image that comes to mind for most is the Hindenburg airship in flames.
But in a lab deep in the basement of Imperial College in London, a young team has built what it believes is the future of air travel.
H2Go Power is seeking a patent to store the explosive gas cheaply and safely.
Until now, storing hydrogen required ultra-strong and large tanks which could withstand pressures of up to 10,000 pound-force per square inch (psi). That is hundreds of times greater than what you would find in a car tyre.
But, while studying for her PhD in Cambridge, Dr Enass Abo-Hamed came up with a revolutionary structure which could store hydrogen as a stable solid without compression.