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The firing of a spacecraft's engine against the direction of motion to cut the spacecraft's orbital speed. The speed reduction places the spacecraft in a lower orbit. If this lower orbit passes through Earth's atmosphere, the spacecraft reenters.

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How many hours is the re entry descent of a space shuttle after mission control gives the go'for deorbit burn?

5


Why don't they launch space shuttles?

they could burn up or explode and caus emany deaths


Why do space shuttles need separate oxygen to burn the fuel in the space shuttle?

Space shuttles operate in the vacuum of space where there is no air to provide oxygen for combustion. Therefore, they carry their own liquid oxygen as an oxidizer to allow the fuel to burn in the rocket engines. This ensures that the shuttle can generate thrust and maneuver in space.


What is the fuel used in space shuttles while landing?

The space shuttle only use the liquid fuel that is onboard to start the decent process. They burn their engines to slow down just enough for the earths gravity to begin pulling them back to earth. After that, they are simply big gliders.


How are space shuttles powered once out of earth's atmosphere?

Space shuttles are powered using rocket engines that burn liquid fuel (such as liquid hydrogen and liquid oxygen) or solid rocket boosters. Once out of Earth's atmosphere, the space shuttle relies on these engines to propel itself through space and maneuver in a zero-gravity environment.


Why is the space shuttle's nose round and not pointed?

The space shuttle's rounded nose helps reduce drag and heat during reentry by creating a shock wave that helps dissipate heat away from the spacecraft. This design also improves stability and control during the various stages of flight.


Should you replace the space shuttle with a jet engine and carbon steel or provide stronger steel to jets to go into space?

A jet engine cannot take you into space as there is no air in space to provide the jet engine with oxygen. Also metals cannot survive reentry as they melt and burn up, unless protected by some type of heat shielding material..


Do space shuttles use fuel?

Space shuttles use fuel when taking off and for control while in orbit, deorbiting, and landing. The main takeoff engines use liquid hydrogen and liquid oxygen, and there are two solid-fuel rocket boosters. In orbit, the shuttle uses thrusters that burn hydrazine and nitrogen tetroxide.


Why doesn't the space shuttle burn up upon entering the eath's atmosphere?

The shuttle spacecraft does nort burn up at all when it does reenters the earths atmosphere, even of the heat. The reason is that there are all heat preventing tiles on the spacecraft from burning, and keeping the astronauts safe.


Why does the space shuttle get very hot when entering the earth's atmosphere?

The space shuttle heats up when it enters the atmosphere because it encounters friction from the atmosphere. This is why the space shuttle is covered with special tiles that dissipates heat very quickly. You can hold a red hot one with the tips of your fingers. At the time of the deorbit burn the space shuttle is going 14,500 miles an hour. The atmosphere friction slows it down slow enough it open it's parachutes.


How slow can you go on reentry to earth?

This depends upon how much fuel you are prepared to burn to oppose the force of gravity. Even the ordinary satellites are falling towards the Earth, and require a periodic thrust (burn) to keep them in orbit. Unfortunately, the attraction due to gravity depends on mass, so most of the space junk just stays up there, whereas the orbiting satellites need an occasional burn to keep them there.


How do space probes get into space?

Space probes are launched into space using various methods, such as rockets, space shuttles, or specialized launch vehicles. Once in space, they rely on onboard propulsion systems to reach their designated destinations within our solar system or beyond. Once they have completed their mission, they may continue their journey into deep space or be rerouted to burn up in Earth's atmosphere.