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Latest Spacecraft propulsion Stories

NASA Selects New Suborbital Payloads
2013-06-10 04:28:29

NASA’s Space Technology Mission Directorate's Flight Opportunities Program has selected 21 new space technology payloads for flights on commercial reusable launch vehicles, balloons, and a commercial parabolic aircraft.

NASA Switches To A Greener Rocket Fuel
2013-05-07 16:32:54

NASA has announced that it will stop using the rocket fuel that has been an aeronautics mainstay since the 1940s and switch to a greener, environmentally-benign propellant.

2013-04-26 23:02:12

Tenshon® shade sail manufacturer in Mesa, AZ is excited to announce the launch of a new scholarship program that aims to give students in the field of architecture, design and engineering


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
taphephobia
  • A morbid dread of being buried alive. Also spelled 'taphiphobia'.
The word 'taphephobia' comes from Greek roots meaning 'burial' and 'fear'.
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