Is There A Better Way To Power Airplanes?

Jet planes rely heavily on jet fuel, which is costly and polluting. Alternatives like coal, wood, and batteries lack the energy density needed for long flights, while gaseous fuels require bulky storage. Diesel and gasoline pose safety risks, and nuclear fuels are too hazardous. Synthetic jet fuel offers a promising alternative, matching the energy of conventional fuel with less pollution, but remains expensive due to production challenges. Scaling up synthetic fuel production to match conventional fuel's cost-effectiveness is a significant hurdle.

What are the risks associated with using nuclear fuels in airplanes?

What is the main reason synthetic jet fuel is currently more expensive than conventional jet fuel?