Comet Jets are Electric | Space News

Space News -- Top 10 #8

: One of the most puzzling cometary phenomena is the spectacular, collimated jets seen exploding at tremendous velocities from comet nuclei. Standard comet theory states that the jets erupt due to sublimating volatiles and trapped gases that explode from underneath the comet’s surface. But this strange vision of comet jets…

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What Science Says

June 6, 2018 It’s common to hear people refer to “what science says.” The usual assumption is that “what science says” is said indefeasibly. But the term ‘science’ has two conflicting senses: science as currently-accepted theory (CAT) and science as method. To conclude that method inevitably leads to CAT and,…

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Cold Winds

Jun 4, 2018 Gas giant planets exhibit extreme weather. The fastest winds ever recorded on Earth was a 372 kilometer per hour gust on Mount Washington, New Hampshire in 1934. Tornadoes and hurricanes can achieve higher average velocities for short periods, but the maximum 24 hour speed record of 205…

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A New Dawn

Jun 1, 2018 Investigating the dwarf planet, Ceres. The Dawn spacecraft was launched on September 27, 2007. It began observing the asteroid Vesta on July 17, 2011 and then headed toward the dwarf planet, Ceres on September 5, 2012. Dawn entered orbit around Ceres at 7:39 AM EST on Friday, March 6,…

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Saturn’s Polar Vortex

  May 30, 2018 Electricity influences Saturn’s environment. The picture at the top of the page could be mistaken for recent images of Jupiter’s Great Red Spot. However, the swirling vortex is actually located in the center of Saturn’s vast, hexagonal north polar formation. Hexagons and other polygons can sometimes…

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Spider Eggs

May 30, 2018 Regions inside this nebula are described as “cocoons” for new stars. The Tarantula Nebula’s designation is 30 Doradus. It is an “emission nebula” in the Large Magellanic Cloud (LMC). Readers may remember that a well-known supernova, 1987a, exploded near the nebula’s edge. The nebula’s average diameter exceeds 1000 light-years,…

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Comet 134340 Pluto?

May 28, 2018 Is Pluto a cometary body? According to a recent press release, Pluto might be composed of a “billion comets”. As Dr. Christopher Glein of SwRI’s Space Science and Engineering Division wrote: “We’ve developed what we call ‘the giant comet’ cosmochemical model of Pluto formation. We found an…

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