Related topics: launch · satellite · space · international space station · nasa

Student experiments to blast off from NASA Wallops

After being developed via a virtual learning experience, more than 70 experiments built by university students across the United States are ready for flight on NASA suborbital flight vehicles.

After 9 years and $10M, Georgia spaceport nears FAA approval

After nine years of planning and $10 million invested by local taxpayers, county officials in Georgia's coastal southeast corner came a big step closer Thursday to winning federal approval of a project engineered to literally ...

Rocket team to discern if our star count should go way up

The universe contains a mind-boggling number of stars—but scientists' best estimates may be an undercount. A NASA-funded sounding rocket is launching with an improved instrument to look for evidence of extra stars that ...

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Rocket

A rocket or rocket vehicle is a missile, spacecraft, aircraft or other vehicle which obtains thrust by the reaction of the rocket to the ejection of fast moving fluid exhaust from a rocket engine. Chemical rockets create their exhaust by the combustion of rocket propellant. The action of the exhaust against the inside of combustion chambers and expansion nozzles is able to accelerate the gas to hypersonic speed, and this exerts a large reactive thrust on the rocket (an equal and opposite reaction in accordance with Newton's third law).

Rockets, in the form of military and recreational uses, date back to at least the 13th century. Widespread military, scientific, and industrial use did not occur until the 20th century, when rocketry was the enabling technology of the Space Age, including setting foot on the moon.

Rockets are used for fireworks, weaponry, ejection seats, launch vehicles for artificial satellites, human spaceflight and exploration of other planets. While comparatively inefficient for low speed use, they are very lightweight and powerful, capable of generating large accelerations and of attaining extremely high speeds with reasonable efficiency.

Chemical rockets store a large amount of energy in an easily-released form, and can be very dangerous. However, careful design, testing, construction and use minimizes risks.

This text uses material from Wikipedia, licensed under CC BY-SA