Latest Spacecraft propulsion Stories
NASA has selected Aerojet of Sacramento, Calif., for a $23.3 million contract to develop engineering demonstrations and risk reduction concepts for future advanced boosters for the agency's Space Launch System (SLS).
Electric rocket engines known as Hall thrusters, which use a super high-velocity stream of ions to propel a spacecraft in space, have been used successfully onboard many missions for half a century.
NASA said it has selected 13 new technologies to ride along payloads for flights on commercial reusable launch vehicles, balloons and a commercial parabolic aircraft in 2013 and 2014.
The Woodward effect is one of many effects that can be derived from the framework of general relativity. The mathematics can be somewhat opaque and so it can be difficult to determine if the resulting effect is a physical, or purely mathematical construct.
Austrian manufacturer MagnaSteyr has adapted technology developed for the Ariane rocket to build clean-burning cars that can use hydrogen instead of petrol for fuel.
On August 14, 2012 the US Air Force conducted a scheduled test flight of its experimental X-51A Waverider aircraft. But the test ended in failure, with the plane crashing into the Pacific Ocean.
NASA has awarded three contracts totaling $137.3 million to improve the affordability, reliability and performance of an advanced booster for the Space Launch System (SLS).
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...
- Sleep; the state or condition of being asleep.
- The state or condition of numbness of a part due to pressure on a nerve: as, the obdormition of a limb.