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The Invisible World of Electric Asteroids

asteroids near earth objects solar wind magnetic fields nasa

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#1    Waspie_Dwarf

Waspie_Dwarf

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Posted 25 June 2014 - 06:55 PM

New NASA Model Gives Glimpse into the Invisible World of Electric Asteroids


www.nasa.gov said:

Space may appear empty -- a soundless vacuum, but it's not an absolute void. It flows with electric activity that is not visible to our eyes. NASA is developing plans to send humans to an asteroid, and wants to know more about the electrical environment explorers will encounter there.

A solar wind blown from the surface of the sun at about a million miles per hour flows around all solar system objects, forming swirling eddies and vortices in its wake. Magnetic fields carried by the solar wind warp, twist, and snap as they slam into the magnetic fields around other objects in our solar system, blasting particles to millions of miles per hour and sending electric currents surging in magnetic storms that, around Earth, can damage sensitive technology like satellites and power grids.

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"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

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#2    Waspie_Dwarf

Waspie_Dwarf

    Space Cadet

  • 34,215 posts
  • Joined:03 Mar 2006
  • Gender:Male
  • Location:Bexleyheath, Kent, UK

  • We are all in the gutter, but some of us are looking at the stars.

    Oscar Wilde

Posted 25 June 2014 - 06:57 PM


Plasma Simulation of the Solar Wind and a Near-Earth Asteroid

Simulated interaction of the solar wind with a small irregularly shaped asteroid, about 150 meters long by 50 meters wide (roughly 164 yards by 55 yards). The deepest shades of red indicate strong and possibly hazardous electric fields.

Credit: NASA/M.I. Zimmerman/W.M. Farrell/A.R. Poppe

Source: NASA - Multimedia

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

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