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Dawn Spacecraft Images Reveal "Ice Rinks" on Ceres. Bright spots may be water ice, researchers say

 
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05/12/2015 08:39 PM
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Dawn Spacecraft Images Reveal "Ice Rinks" on Ceres. Bright spots may be water ice, researchers say
Something weird is happening on the dwarf planet Ceres, which at 950 kilometers wide is the largest object in the Asteroid Belt. Since its arrival in Ceres’s vicinity earlier this spring, NASA’s Dawn spacecraft has glimpsed mysterious, highly reflective bright spots dotting the surface. No one yet knows what exactly they are or how they got there.

Periodically snapping pictures as it gradually spirals down to a low-altitude “survey” orbit, Dawn has provided a slow-motion zoom-in on the dwarf planet, allowing imaginations to run wild as experts and laypeople alike seek to discern structures and patterns in the low-resolution images. Consequently, many possible explanations for the bright spots have emerged, some more plausible than others, and the ideas shift with each new vista Dawn beams home. The spots could be salts deposited by briny vapors from gushing geysers or, less likely, plumes from water-spewing “cryovolcanoes.”



MORE....
[link to www.scientificamerican.com]



Ceres Animation Showcases Bright Spots
[link to www.jpl.nasa.gov]
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411  (OP)

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05/14/2015 06:16 PM
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Re: Dawn Spacecraft Images Reveal "Ice Rinks" on Ceres. Bright spots may be water ice, researchers say
A few close-up images I found...

[link to i.imgur.com]
[link to i.imgur.com]
[link to www.unmannedspaceflight.com]

Last Edited by 411 on 05/14/2015 06:18 PM
"Necessity is the plea for every infringement of human freedom. It is the argument of tyrants; it is the creed of slaves." --William Pitt
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Re: Dawn Spacecraft Images Reveal "Ice Rinks" on Ceres. Bright spots may be water ice, researchers say
Maybe I'm imagining it but can anyone else see plumes of steam rising from the bright spots?





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