Extrasolar Planet's Missing Water Discovered
April 12, 2007 11:16 AM
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The debate on whether or not Osiris has water in its atmosphere continues
A new analysis again suggests that gas giant HD209458b currently has water in its atmosphere. The planet -- nicknamed Osiris -- is 150 light years away from Earth, located in the Pegasus constellation. The planet was first detected in late November 1999, with the help of astronomical spectroscopy.
The hot, Jupiter-like gaseous planet has been the target of research once scientists believed water could be located somewhere on the planet. Three teams of scientists previously believed there could be water in the planet's atmosphere, but those ideas were questioned after the NASA Spitzer Space Telescope was unable to provide evidence.
Travis Bartman, an astronomer working at Lowell Observatory,
believes he has discovered the missing water
after analyzing the light from a star when it passes through HD209458b's atmosphere.
Barman and researchers from Harvard University measured the light coming from Osiris as it reached the furthest part of the 3.5-day orbit it makes around the star. With the help of the Hubble Space Telescope, it was possible to further study water absorption in the planet's atmosphere. Each time the planet passes its parent star, it is possible to analyze how the atmosphere absorbs light passing from the star through the atmosphere.
Scientists will continue to study and conduct research to either confirm or deny Barman's research.
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RE: Will that help?
4/12/2007 6:52:20 PM
Speaking solely on the water comment: Potable water is a huge problem.
It's not that people die of thirst, it's that they die of complications/diseases caused by a lack of clean water. Water from glaciers are often the cheapest, cleanest water available to very large tracts of people. It's for that reason why global warming will have a much greater impact on poorer areas and nations. Those that can afford such things as desalination plants won't have that much of a problem with it.
RE: Will that help?
4/12/2007 9:35:52 PM
> "it's that they die of complications/diseases caused by a lack of clean water."
water, exactly. Not water itself. Which has been mankind's problem for thousands of years...and also explains why, a scant few hundred years ago, water contamination (primarily from human and animal feces) was the number one killer world-wide. It's a problem wherever people congregate, and wind up fouling their own water...and also explains the early popularity of beer and tea (boiled water is safe).
But its an
problem at this time-- not something for which we need to pull thousands of scientists of their current research to search for a solution.
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