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Latest Spacecraft propulsion Stories

NASA, Industry Leaders Discuss New Booster Development for Space Launch System
2011-12-18 05:30:55

On Dec. 15, more than 120 aerospace industry leaders from more than 70 companies attended the Space Launch System's Advanced Booster Industry Day held at Marshall Space Flight Center in Huntsville, Ala. The event focused on a NASA Research Announcement for the Space Launch System's (SLS) advanced booster. Marshall is leading the design and development of the SLS on behalf of the agency. The new heavy-lift launch vehicle will expand human presence beyond low-Earth orbit and enable new...

Army’s Super Secret Hypersonic Weapon Undergoes Testing
2011-11-18 11:52:49

The US Army conducted its first flight test of its new Advanced Hypersonic Weapon (AHW), launching the high-tech bomb from the Pacific Missile Range Facility in Kauai on Thursday. After launch, the rocket glided through the upper atmosphere over the Pacific “at hypersonic speed” before reaching its target on the Kwajalein atoll in the Marshall Islands, according to a statement made by the Pentagon. The rocket made the trip from Kauai to Kwajalein -- some 2,500 miles...

Navy's Electromagnetic Railgun Reaches Testing Milestone
2011-11-02 04:35:54

The U.S. Naval Research Laboratory Materials Testing Facility demonstrated, Oct.31, the one-thousandth successful firing of its Electromagnetic Railgun, reaching a materials testing milestone in the weapon's technological development and future implementation aboard U.S. Navy warships. "This test demonstrates continued advances in armature development, rail design, and barrel materials used in high power railgun launch," said Dr. Robert Meger, head, NRL Charged Particle Physics Branch....


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
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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