Krónos Elektron

  Aug 12, 2016 Saturn generates electricity. Saturn is quite large compared to Earth; its mean equatorial diameter is about 121,000 kilometers. However, Saturn rotates so fast (10 hours, 34 minutes) that its polar diameter is 108,700 kilometers. The difference is caused by “flattening” as angular momentum pushes the low-density…

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A Box of Plasma Rain

  Aug 8, 2016 “Walk into splintered sunlight…” NASA launched the Interface Region Imaging Spectrograph (IRIS) on June 28, 2013. Its primary mission includes a study of the solar corona: why is it far hotter than the Sun’s surface, or photosphere? Heliophysicists see formations that resemble “mini-tornadoes” in the Sun’s…

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Life on Europa

  Aug 4, 2016 The definition of “life” can be ambiguous. Originally published November 16, 2014. The Galileo spacecraft was launched on October 18, 1989 from the Space Shuttle Atlantis, and subsequently entered orbit around Jupiter on December 7, 1995. After eight years in orbit, Galileo was deliberately incinerated by…

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