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Latest Spacecraft propulsion Stories

2014-03-25 16:20:17

WASHINGTON, March 25, 2014 /PRNewswire-USNewswire/ -- NASA is seeking proposals from U.S. commercial suborbital reusable launch vehicle providers to integrate and fly technology payloads for the space agency. http://photos.prnewswire.com/prnvar/20081007/38461LOGO NASA uses companies for suborbital flights to encourage and facilitate the growth of this important aerospace market while also providing a means to advance a wide range of new launch vehicle and space technologies. NASA...

Mini Rocket Models Used In Big Way For Space Launch System Base Heating Test
2014-03-06 14:29:37

[ Watch The Video: Models Helping Engineers Better Understand Heat ] Megan Davidson, NASA To better understand the heating conditions at the base of what will be the biggest, most powerful rocket ever built, engineers at NASA's Marshall Space Flight Center in Huntsville, Ala., are thinking small -- really small. Models of NASA's Space Launch System (SLS) core stage RS-25 engines and solid rocket boosters -- scaled down to just 2 percent of the actual size of the flight hardware...

New Conceptual Configuration For Air-breathing Hypersonic Airplanes
2013-12-17 15:00:13

Science China Press How to design a hypersonic airplane that travels from Beijing to New York in only two hours? Dr. Cui Kai and his group from State Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences set out to tackle this problem. After three years of innovative research, they presented a body-wing-blending configuration with double flanking air inlets layout to aim at design requirements of high lift-to-drag ratio as well as high...

Understanding Fluid Slosh To Improve Rocket Safety And Efficiency
2013-12-17 07:38:16

NASA Since Robert Goddard's first launch of a liquid propellant rocket in 1926, experts have worked to perfect engine propulsion systems. As launch vehicles have grown in size, fuel and oxidizer tanks have become more complex resulting in unexpected changes in thrust, potentially endangering flight crews and mission success. A team of scientists and engineers at NASA's Kennedy Space Center in Florida is now studying how to better understand this phenomenon and reduce its potential impacts...

LADEE Initial Systems Checkout Phase Successfully Completed
2013-09-11 10:03:06

[ Watch The Video - LADEE Launches! ] NASA After a spectacular launch, the Lunar Atmosphere and Dust Environment Explorer (LADEE) spacecraft was placed by the Minotaur V launch vehicle into an elliptic orbit around Earth, as the start of our journey to the moon. After adjusting some fault protection settings to enable the reaction wheels, mission controllers at NASA's Ames Research Center in Moffett Field, Calif., successfully completed the initial systems checkout phase, and...

Lasting Propulsion And High Speeds For Deep Space Missions Provided by NEXT
2013-09-09 12:11:13

[ Watch The Video - Gridded Ion Thruster ] NASA Ion propulsion used to exist only in the imagination of science fiction writers. But after years of research and development NASA is poised to equip some of its most important deep space missions with ion engines that can nudge spacecraft using charged particles accelerated to blistering speeds of up to 90,000 miles per hour.  And in the vastness of space, those engines need to push continuously for years. NASA’s Evolutionary Xenon...

Developing Micro Rockets
2013-08-30 11:11:15

Michigan Technological University Nanosatellites are smartphone-sized spacecraft that can perform simple, yet valuable, space missions. Dozens of these little vehicles are now tirelessly orbiting the earth performing valuable functions for NASA, the Department of Defense and even private companies. Nanosatellites borrow many of their components from terrestrial gadgets: miniaturized cameras, wireless radios and GPS receivers that have been perfected for hand-held devices are also...

3D Printed Rocket Component Blazes To Life In New Firing Test
2013-08-28 04:28:20

redOrbit Staff & Wire Reports - Your Universe Online The largest 3D printed rocket engine component ever tested by NASA produced a record 20,000 pounds of thrust during an engine firing last Thursday, officials at the US space agency have revealed. The component tested during the engine firing was an injector, which delivers propellants used to power an engine and provides the thrust required to launch rockets into space, NASA explained. During the test, liquid oxygen and gaseous...


Latest Spacecraft propulsion Reference Libraries

6_e1c9b89b48eaf2af7055b7bbebf1a19c2
2004-10-19 04:45:41

Escape Velocity -- An escape velocity is the minimum speed at which an object without propulsion can move away from a source of a gravitational field indefinitely if there is no friction. This definition may need modification for the practical problem of two or more sources in some cases. In any case, the object is assumed to be a point with a mass that is negligible compared with that of the source of the field, usually an excellent approximation. It is commonly described as the speed...

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Word of the Day
endocarp
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'karpos', fruit.
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