SOLAR SYSTEM

Detailed explanation-1: -The Titan, Delta, and Space Shuttle launch vehicles use strap-on solid propellant rockets to provide added thrust at liftoff. The Space Shuttle uses the largest solid rocket motors ever built and flown.

Detailed explanation-2: -Most liquid chemical rockets use two separate propellants: a fuel and an oxidizer. Typical fuels include kerosene, alcohol, hydrazine and its derivatives, and liquid hydrogen. Many others have been tested and used. Oxidizers include nitric acid, nitrogen tetroxide, liquid oxygen, and liquid fluorine.

Detailed explanation-3: -Liquid hydrogen and liquid oxygen are used as propellent for rocket.

Detailed explanation-4: -The petroleum used as rocket fuel is a type of highly refined kerosene. Cryogenic propellants are liquefied gases stored at very low temperatures, most frequently liquid hydrogen (LH2) as the fuel and liquid oxygen (LO2 or LOX) as the oxidizer.

Detailed explanation-5: -Rocket engines are reaction engines, producing thrust by ejecting mass rearward, in accordance with Newton’s third law. Most rocket engines use the combustion of reactive chemicals to supply the necessary energy, but non-combusting forms such as cold gas thrusters and nuclear thermal rockets also exist.

Detailed explanation-6: -The most common fuels are liquid hydrogen, or LH2, and rocket-grade kerosene, or RP-1. These are usually burned with liquid oxygen, or LOX. Usage varies with application: LH2/LOX has a high specific impulse, while RP-1/LOX has a higher density and is less difficult to store.