NASA weighing risk of adding crew to megarocket's first flight
NASA is weighing the risk of adding astronauts to the first flight of its new megarocket, designed to eventually send crews to Mars.
NASA is weighing the risk of adding astronauts to the first flight of its new megarocket, designed to eventually send crews to Mars.
Space Exploration
Feb 24, 2017
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The US Defense Advanced Research Projects Agency (Darpa) has recently commissioned three private companies, Blue Origin, Lockheed Martin and General Atomics, to develop nuclear fission thermal rockets for use in lunar orbit.
Space Exploration
May 10, 2021
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Elon Musk, head of SpaceX, has announced via Twitter that the company's SN8 rocket will take a test flight sometime next week. The plan is for the rocket is to soar up to 60,000 feet (18,300 meters) and then return to Earth ...
On September 12, 1962, then US president John F Kennedy informed the public of his plan to put a man on the Moon by the end of the decade.
Space Exploration
Sep 10, 2022
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Astronomy experts say they originally misread the secrets of the night sky last month: it turns out that a rocket expected to crash into the Moon in early March was built by China, not SpaceX.
Space Exploration
Feb 15, 2022
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Even after 30 months in space, The Planetary Society's LightSail 2 mission continues to successfully "sail on sunbeams," demonstrating solar sail technology in Earth orbit. The mission is providing hard data for future missions ...
Space Exploration
Nov 19, 2021
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Engineers at the University of Cincinnati are developing new ways to convert greenhouse gases to fuel to address climate change and get astronauts home from Mars.
Materials Science
Sep 23, 2021
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For the second month in a row, the aerospace upstart SpaceX landed a rocket on an ocean platform early Friday, this time following the successful launch of a Japanese communications satellite.
Space Exploration
May 6, 2016
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There are lots of potential uses for a Mars colony. It could be a research outpost, mining colony, or even a possible second home if something happens to go drastically wrong on our first one. But it could also be a potential ...
Space Exploration
Oct 28, 2021
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A new entrant in the space tourism market promises customers views of the Earth's curvature from the comfort of a luxury cabin, lifted to the upper atmosphere with a giant balloon.
Space Exploration
Apr 12, 2022
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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