South Korea said Thursday it had successfully launched its homegrown Nuri rocket and placed working satellites into orbit, hailing a key step forward for the country's burgeoning space program.
Space Exploration
May 25, 2023
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SpaceX's next private flight to the International Space Station awaited takeoff Sunday, weather and rocket permitting.
Space Exploration
May 21, 2023
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Jeff Bezos' rocket company has won a NASA contract to land astronauts on the moon, two years after it lost out to SpaceX.
Space Exploration
May 19, 2023
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NASA launched two small satellites designed to track tropical cyclones hour by hour from a base in New Zealand on Monday, in a project that could improve weather predictions on devastating storms.
Space Exploration
May 8, 2023
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Not one, but two rocket launches with ESA-led experiments are flying to the edge of space just a week apart, providing unique data to researchers eager to learn more about fundamental physics, semiconductor production, the ...
Space Exploration
Apr 26, 2023
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When a lander descends toward the moon—or a rocky planet, asteroid, or comet—the exhaust plume of the rocket interacts with the surface, causing erosion and kicking up regolith particles. The resulting blanket of dusty ...
Space Exploration
Apr 25, 2023
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Flying chunks of concrete, twisted metal sheets, craters blasted deep into the ground: the thunderous power of SpaceX's first test flight of Starship—the biggest and most powerful rocket ever built—inflicted serious damage ...
Space Exploration
Apr 24, 2023
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Astronomers have successfully launched a balloon-borne telescope which has begun capturing images of the universe on its first research flight.
Astronomy
Apr 20, 2023
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A young man breathes deeply from a gas-filled bag. He begins to feel a pleasurable sensation "particularly in the chest and extremities" before dancing around and then collapsing in a heap. A few minutes later he comes to ...
Environment
Apr 20, 2023
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SpaceX's giant new rocket exploded minutes after blasting off on its first test flight Thursday and crashed into the Gulf of Mexico.
Space Exploration
Apr 20, 2023
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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
