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Latest Spacecraft propulsion Stories

United Launch Alliance
2014-07-29 04:20:28

CAPE CANAVERAL AIR FORCE STATION, Fla., July 29, 2014 /PRNewswire/ -- A United Launch Alliance (ULA) Delta IV rocket successfully launched the AFSPC-4 mission for the U.S. Air Force on July 28 at 7:28 p.m. EDT from Space Launch Complex-37. This is ULA's eighth launch in 2014, and the 85(th) successful launch since the company was formed in December 2006. "The ULA team is proud to have delivered the twin Geosynchronous Space Situational Awareness Program (GSSAP) spacecraft to orbit today,"...

Four JPL Suborbital Technology Payloads Chosen By NASA
2014-07-11 03:21:06

NASA's Jet Propulsion Laboratory From hopping/tumbling robots to gecko-inspired adhesives, a variety of technologies have been chosen by NASA for flight on commercial reusable launch vehicles and a commercial parabolic aircraft. The selections were made through NASA's Flight Opportunities Program. The program gives these 13 space technology payloads, including four from NASA's Jet Propulsion Laboratory, Pasadena, California, a chance to be tested before they are used in the harsh...

Venus Express Preparing To Take The Plunge
2014-05-16 03:55:38

[ Watch the Video: ESA’s Venus Express Aerobraking Maneuver ] ESA After eight years in orbit, ESA’s Venus Express has completed routine science observations and is preparing for a daring plunge into the planet’s hostile atmosphere. Venus Express was launched on a Soyuz–Fregat from the Russian Baikonur Cosmodrome in Kazakhstan on 9 November 2005, and arrived at Venus on 11 April 2006. It has been orbiting Venus in an elliptical 24-hour loop that takes it from a distant 66...

2014-03-31 08:20:34

Critical engine technology validates green propellant advantages over hydrazine BOULDER, Colo., March 31, 2014 /PRNewswire/ -- Ball Aerospace & Technologies Corp. and Aerojet Rocketdyne exceeded the technical range objective for the main thruster that will fly aboard the Green Propellant Infusion Mission (GPIM). This mission will demonstrate in a space environment, a "green" propellant known as AF-M315E, to replace the highly toxic hydrazine and complex bi-propellant systems...

X-43A hypersonic research aircraft
2014-03-27 04:53:03

Source Material Provided by NASA NASA's X-43A shattered existing speed records for aircraft with air-breathing engines on March 27, 2004, when the scram-jet powered plane reached Mach 6.83 - 4,900 miles per hour - during a brief flight over the Pacific Ocean. This new speed record was more than twice as fast as the SR-71 Blackbird, which could cruise at Mach 3.32—2,193 mph. The X-43A's speed even bested the rocket-powered X-15A-2, which had set a record of Mach 6.7 - 4,520 mph - in...

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...


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
abrosia
  • Wasting away as a result of abstinence from food.
The word 'abrosia' comes from a Greek roots meaning 'not' and 'eating'.