Does the SpaceX reusable rocket use solid or liquid fuel?

Thanks for the A2A. I normally pass on questions that can be answered with a single Google query, but in this case, there's no harm in it. Liquid oxygen and rocket grade kerosene. read more

Liquid fuel was used. Solid rocket boosters, the entirety of which can be considered both and engine and a fuel tank, couldn't be used for true reusability, as once lit they cannot be shut off, and even the pseudo-reusable space shuttle solid rocket boosters had to be pretty much fully reconstructed for each launch. read more

The Falcon 9 carries kerosene as fuel, but kerosene needs oxygen to combust—and there’s no oxygen in space. Rockets have to bring their fuel and their oxygen. Liquid oxygen, cooled to just below the element’s boiling point of -297.3 degrees Fahrenheit, is already standard in high-powered rockets that launch spaceships and satellites. read more