buy canada goose jacket cheap Does Enceladus Harbor a Liquid Ocean buy canada goose jacket cheap

canada goose Two papers in the journal Nature this week come down on opposite sides of the question about whether Saturn moon Enceladus contains a salty, liquid ocean. canada goose

canadian goose jacket One research team, from Europe, says an enormous plume of water spurting cheap canada goose uk in giant jets canada goose black friday sale from the moon south pole is fed by a salty ocean. The other group, led out of the University Canada Goose online of Colorado at Boulder, contends that the supposed geysers don have enough sodium to come from an ocean. Thetruth could have implications canada goose uk outlet for the search for extraterrestriallife, as well as our understanding of how planetary moons are formed. canadian goose jacket

buy canada goose jacket The Cassini spacecraft first spotted the plumeon its exploration of the giant ringedplanet in 2005. Enceladus ejects water Canada Goose Parka vapor, gas and tiny grains of buy canada goose jacket

Canada Goose Outlet ice into space hundreds of kilometers above the moon’s surface. Canada Goose Outlet

Canada Goose online The moon, which orbits in Saturn’s outermost « E » ring, is one of only Canada Goose online

three outer solar system bodies that produce active eruptions of dust

and vapor. Moreover, aside from the Earth, Mars, and Jupiter’s moon

Europa, it is one of the only canada goose coats places in the solar system for which

canada goose deals astronomers have direct evidence of the presence of water. canada goose deals

canada goose coats The European researchers, led by canada goose clearance Frank Postbergof the University of Heidelberg in Germany, are reporting the detection of sodium salts Canada Goose Outlet among the dustejected in the Enceladusplume. Postberg and colleagues have studieddata from the Cosmic Dust Analyzer (CDA) onboard the canada goose factory sale Cassini canada goose coats

spacecraft and have combined the data with laboratory experiments.

Canada Goose sale They say the canada goose uk shop icy canada goose coats on sale grains in uk canada goose theEnceladus plume contain Canada Goose sale

canada goose Canada Goose Outlet black friday sale substantial quantities of sodium salts, hinting at the salty ocean canada goose black friday sale

canada goose clearance sale The results of their study imply that theconcentration of sodium chloride in the ocean can be as high as thatof Earth’s oceans and is about Canada Goose Online 0.1 0.3 moles of salt per kilogram ofwater. canada goose clearance sale

canada goose store But the Colorado study suggests Canada Goose Coats On Sale a different interpretation. canada goose store

Nicholas Schneider, of CU Boulder’sLaboratory for Atmospheric and Space Physics,and his colleagues say high amounts of sodium in the plumeshould give off the same yellow light thatcomes off street lights, and that the world’s best telescopes candetect even a small number canada goose clearance sale of sodium atoms orbiting Saturn.

cheap Canada Goose Schneider’s team usied the 10 meter Keck 1 telescopeand the 4 meter Anglo Australian telescope, and demonstrated thatfew if any sodium atoms existed in the water vapor. « It would havebeen very exciting to support the geyser hypothesis. But canadian goose jacket it is notwhat Mother Nature is telling us, » said Schneider. cheap Canada Goose

One suggested canada goose explanation for the contrasting results, said Schneider,is that cheap Canada Goose deep caverns may exist where water evaporates slowly.

canada goose coats on sale « Only if the evaporation is more explosive would it contain moresalt, » he said. « This idea of slow evaporation uk canada goose outlet from a deepcavernous ocean is not the dramatic idea that we imagined before, butit is possible given both our results so far. » canada goose coats on sale

But Schneider also cautions that several other explanations for thejets are equally plausible. « It could still be warm ice vaporizingaway into space. It could even be places where the crust rubs againstitself from tidal motions and the canada goose store friction creates liquid water buy canada goose jacket thatwould then evaporate into space, » he said.

Canada Goose Parka « These are all hypotheses but we can’t verify any one with the resultsso far, » said Schneider. « We have to take them all with, well, Canada Goose sale a grainof salt. » Canada Goose Parka

Lead photo caption: Image of Enceladus from Cassini. Credit: NASA/JPL/Space Science Institute

canada goose clearance Sources: Press releases from CU Boulder and the University of Leicester, via Nature and Eurekalert (a news service through the American Association for the Advancement of Science). canada goose clearance

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