Iapetus

Iapetus

  Feb 04, 2013 The Cassini space probe’s flyby of Iapetus confirms its electrical attributes. The closest images of Iapetus ever taken came from the Cassini spacecraft as it flew to within 5000 kilometers of its target, resolving features as small as ten meters. In a previous Picture of the…

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Comets and Galaxies

Feb 01, 2013 Galactic tails, bright comas, and central nuclei are reminiscent of comets. What is a comet? Most astronomers think comets are small, fragile, irregularly shaped objects composed mostly of water ice and dust, along with carbon and silicon-based compounds. “Dirty snowballs,” as Fred Whipple described them in 1950….

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Mars in the Laboratory

  Jan 28, 2013 Plasma discharge experiments replicate Martian features. On Mars, craters, canyons, dunes and many other features do not readily correspond to contemporary theories about their evolution. Dunes that do not align with the direction of the prevailing winds and they do not show any movement after years…

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