ELI5: Explain Like I'm 5

RP-1

RP-1 is a type of fuel that is used in rockets to make them go really fast and really high up into space. It is a special type of fluid that looks like syrup and is made from oil. Just like how we need food to have energy, rockets need fuel to have energy to move. RP-1 is a great fuel for rockets because it is really efficient and has a lot of energy in it. Rockets carrying people or satellites to space use RP-1 so they can get to their destination really fast and safely.