The Strokes of Night

Dec 1, 2017 Lightning phenomena are scaleable. Transverse electric currents accompany a main discharge channel. That channel is often seen by most people as a terrestrial lightning bolt. Slow-motion videos show that multiple leader strokes descend from the clouds, while less visible potential contacts rise from the ground. Once two…

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Thereby Hangs A Tail

  Nov 30, 2017 Different kinds of objects have long “tails”. From galactic-scale objects such as Centaurus A, to hot-bright stars, to planets, to comets, it seems like everything in space exhibits an energetic jet or trailing emission that is difficult to explain using conventional theories. Every new observation requires…

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Morning Star

  Nov 29, 2017 Venus is an electrically active world. The European Space Agency’s (ESA) Venus Express was launched from Baikonur Cosmodrome in Kazakhstan on November 9, 2005. The spacecraft entered orbit around Venus on April 11, 2006. One its “surprising” discoveries was electric discharges in the planet’s upper atmosphere….

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Cooling Off

Nov 27, 2017 Jupiter’s Red Spot is shrinking. For over 300 years, the Great Red Spot has persisted in Jupiter’s atmosphere—longer than telescopes have existed to see it. It is commonly believed to be a cyclonic storm driven by thermal convection from deep inside Jupiter’s atmosphere. How it was formed…

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A Cold Exterior

Nov 22, 2017 One of the most important questions about other planets is whether water is present in any significant amount. Water sustains Earth’s ecology, so there is a presumption among planetary scientists that water is necessary for life to exist on other planets. There are rovers on Mars, along…

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