Why don't NASA's Rockets burn up while falling back through earths atmosphere?

Why don't NASA's Rockets burn up while falling back through earths atmosphere?
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The rockets have heat cells on the rocket
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(4) Liquid Hydrogen + Liquid Oxygen Explanation: LOX and liquid hydrogen, used in the Space Shuttle orbiter, the Centaur upper stage of the Atlas V, Saturn V upper stages, the newer Delta IV rocket, the H-IIA rocket, and most stages of the European Ariane rockets. Liquid fueled rocicets have higher specific impulse than solid rockets and are capable of being throttled, shut down, and restarted. Only the combustion chamber of a liquid fueled rocket needs to withstand high combustion pressures and temperatures and they can be regeneratively cooled by the liquid propellant.

Description : (4) Liquid Hydrogen + Liquid Oxygen Explanation: LOX and liquid hydrogen, used in the Space Shuttle orbiter, the Centaur upper stage of the Atlas V, Saturn V upper stages, the ... to withstand high combustion pressures and temperatures and they can be regeneratively cooled by the liquid propellant.

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The metal used for making air crafts and rockets is – (1) Lead (2) Aluminium (3) Nickel (4) Copper

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Plants get their light from the …………………… . (a) rockets (b) asteroids (c) stars (d) sun

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The heavenly bodies that do not twinkle are called ………………. . (a) planets (b) stars (c) rockets

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For what purpose are rockets used in space travel?

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The fuel used in rockets is:

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Last Answer : Liquid oxygen, nitrogen tetroxide, and hydrogen peroxide