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Herschel Discovers Water Vapor Spewing from Ceres
universetoday.com ^ | January 22, 2014 | Nancy Atkinson on

Posted on 01/22/2014 1:51:16 PM PST by BenLurkin

Herschel used its far-infrared vision with the HIFI instrument to see a clear spectral signature of the water vapor. But, interestingly, Herschel did not see water vapor every time it looked. There were variations in the water signal during the dwarf planet’s 9-hour rotation period. The telescope spied water vapor four different times, on one occasion there was no signature. The astronomers deduced that almost all of the water vapor was seen to be coming from just two spots on the surface.

Although Herschel was not able to make a resolved image of Ceres, the team was able to derive the distribution of water sources on the surface.

“We estimate that approximately 6 kg of water vapour is being produced per second, requiring only a tiny fraction of Ceres to be covered by water ice, which links nicely to the two localised surface features we have observed,” says Laurence O’Rourke, Principal Investigator for the Herschel asteroid and comet observation programme called MACH-11, and second author on the paper.

(Excerpt) Read more at universetoday.com ...


TOPICS: Astronomy
KEYWORDS: asteroids; ceres; dawnspacecraft; herschel; vesta

1 posted on 01/22/2014 1:51:16 PM PST by BenLurkin
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To: All

We need to shut that down right away! Water vapor is a greenhouse gas!


2 posted on 01/22/2014 1:56:21 PM PST by Klemper
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To: BenLurkin

On spaghetti Tuesday on Wednesday?


3 posted on 01/22/2014 2:13:31 PM PST by cripplecreek (REMEMBER THE RIVER RAISIN!)
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To: BenLurkin

We’ll get a good look when the Dawn craft arrives there in a few months.


4 posted on 01/22/2014 2:14:44 PM PST by cripplecreek (REMEMBER THE RIVER RAISIN!)
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To: cripplecreek

LOL!

I knew it was coming...


5 posted on 01/22/2014 2:23:12 PM PST by CatherineofAragon ((Support Christian white males----the architects of the jewel known as Western Civilization.))
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To: BenLurkin

Ceres is as complex as any of the other rocky planets. Asimov had it right when he referred to it as ,”the World Ceres’


6 posted on 01/22/2014 2:26:17 PM PST by jmcenanly ("The more corrupt the state, the more laws." Tacitus, Publius Cornelius)
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To: CatherineofAragon

If we had any spaghetti.


7 posted on 01/22/2014 2:42:24 PM PST by cripplecreek (REMEMBER THE RIVER RAISIN!)
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To: BenLurkin; brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; ...

That’s amazing, because Herschel’s been dead for years!

/jk

Thanks BenLurkin. Extra to APoD.


8 posted on 01/22/2014 5:35:08 PM PST by SunkenCiv (;http://www.freerepublic.com/~mestamachine/)
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To: SunkenCiv

I'm what???

9 posted on 01/23/2014 9:44:08 AM PST by colorado tanker
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To: colorado tanker

You said ‘water vapor’, there are fourteen places where water vapor is spewing out, three of them are fairly close to you.


10 posted on 01/23/2014 5:20:00 PM PST by SunkenCiv (;http://www.freerepublic.com/~mestamachine/)
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