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

SpaceX re-useable rocket misses landing ship

SpaceX successfully launched its latest cluster of high-speed internet satellites into orbit Monday but was unable to land its rocket booster on an autonomous ship, missing a key milestone.

CHEOPS space telescope takes its first pictures

The tension was high: In front of a large screen at the house near Madrid where members of the Consortium participating in the commissioning of the satellite live, as well as at the other institutes involved in CHEOPS, the ...

SpaceX in 'perfect' test of Crew Dragon emergency abort system

SpaceX successfully tested its emergency abort system on an unmanned spacecraft moments after launch Sunday, according to a live broadcast of the event, the last major test before it plans to send NASA astronauts to the International ...

Moon river: Rocket part ferried on the mighty Mississippi

With a brass band playing and a parade of workers sporting Mardi Gras beads, a huge component of a new rocket system was wheeled slowly from a New Orleans spacecraft factory on Wednesday to a barge that will float it up the ...

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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.

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