Electric Sunbeams

  Mar 25, 2013 The Sun is not a fusion reactor. In a recent Picture of the Day, it was noted that sunspots are not well understood by astronomers. Furthermore, their bizarre electromagnetic displays are not readily explainable by models of solar activity that rely on radiant emissions from thermonuclear…

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Plasma Twisting and Rock Banging

  Mar 19, 2013 This recent image of the Pencil Nebula from La Silla Observatory showcases a cosmic counterpart to “hair” discharges from Tesla coils. Electric forces separate the plasma into parallel filaments. Magnetic forces further constrict them (the “z pinch”) and induce them to twist around each other, producing a braided…

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Solar Bursts

  Mar 18, 2013 The intensity of the Sun’s magnetic field and solar wind periodically decline to low levels but explosive events are possible. On August 25, 1997, NASA launched the Advanced Composition Explorer (ACE) satellite on a mission to monitor energetic ions coming from the Sun, as well as…

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