Rocket propellant refers to the fuel that powers rockets. It is like the energy drink for rockets, giving them the force they need to lift off into space. Full definition
On Earth, naturally produced perchlorates are concentrated in deserts, and some types of perchlorates can be used as rocket propellant. (sciencedaily.com)
The first stage used Rocket Propellant - 1, a form of kerosene similar to jet fuel, while the second and third stages relied on liquid hydrogen for fuel. (businessinsider.com)
«And if you convert it back to molecular hydrogen, all that energy is released, so it would make it the most powerful rocket propellant known to man, and could revolutionize rocketry.» (sciencedaily.com)