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Latest Spacecraft propulsion Stories

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

Brett Smith for redOrbit.com - Your Universe Online 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. The space agency says that the first space flight powered with this new fuel will take place in 2015. Hydrazine was used to power the first rocket-powered fighter plane in World War II, the Viking Missions of the 1970s, and more recently the Curiosity mission...

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 a chance to compete to win a $1,500 scholarship for the most creative shade sail design. Mesa, AZ (PRWEB) April 26, 2013 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...

To Mars In A Month With The Help Of Nuclear Fusion
2013-04-09 19:22:32

Michael Harper for redOrbit.com — Your Universe Online There are many who would like to one day go to Mars. This list of willing candidates likely dries up when asked to dedicate a total of four years to the trip. The Inspiration Mars Foundation, on the other hand, believes they can shoot a couple around the Red Planet and back again in just over 500 days. Now, researchers at the University of Washington aim to make the trip in even less time — somewhere around 30 days, to...

Researchers Developing Elecrohydrodynamic Thrust Technology
2013-04-03 19:12:11

Lee Rannals for redOrbit.com — Your Universe Online MIT researchers writing in the journal Proceedings of the Royal Society A say they found ionic wind thrusters may be a more efficient source of propulsion than conventional jet engines. Ionic wind, or electrohydrodynamic thrust, was first identified in the 1960s. The phenomenon takes place when a current passes between two electrodes, creating a wind in the air between. If enough voltage is applied, the wind produces a thrust...

2013-02-15 08:11:01

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). Aerojet is one of four companies contracted under a NASA Research Announcement (NRA) to improve the affordability, reliability and performance of an advanced booster for a future version of the SLS heavy-lift rocket. The SLS vehicle will take the agency's Orion...


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
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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