Print 39 comment(s) - last by masher2.. on Apr 15 at 6:38 PM

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?
By Seemonkeyscanfly on 4/12/2007 3:12:40 PM , Rating: 0
OK, agree important to search other planets but one question comes to mind…Why search Jupiter as stated in the 2nd paragraph? Let’s forget the distance, Great it has water, Can I have some volunteers to go live or bring back some water from Jupiter, please? Oh, yes, I want to go. I wanted to know what I’d look like thinner then 1/10 of a millimeter and spread over a couple of miles. I can understand looking at Jupiter’s moons for water, but Jupiter it’s self seems to be a waste of time. Since I do not think we will ever be able to use any resource from that planet. Though I bet the rocks from Jupiter are as hard as hell, use them to bust up diamonds.

RE: Will that help?
By masher2 on 4/12/2007 3:30:03 PM , Rating: 5
By your logic, we shouldn't study the surface of the sun, as no one will ever live there.

Studying any planet-- even Jupiter-- teaches us a great deal about the Earth. What processes are parallel, what ones are divergent...the list is endless. Without this, "Earth Science" is like trying to understand human psychology by examining just one person.

RE: Will that help?
By Seemonkeyscanfly on 4/12/07, Rating: 0
RE: Will that help?
By Ringold on 4/12/2007 7:56:37 PM , Rating: 2
I wouldn't be true to my form if I didn't chime in and say I, at least, look forward to research like this one day leading to commercial exploitation of Jupiter, its moons, and the other planets of similar composition in the solar system..

Plus, it might mean Jupiter and planets like it would not only be a good place to hide from the Cylon's, but maybe we can also pull water from the atmosphere! Valuable research indeed.

RE: Will that help?
By Seemonkeyscanfly on 4/13/2007 10:01:15 AM , Rating: 2
Doh! Forgot about the Cylon factor. How stupid of me. Now it's all clear.

RE: Will that help?
By Ringold on 4/13/2007 3:46:45 PM , Rating: 2
They're counting on your forgetting, of course. Just like the Buggers.

But the real point was, of course, that Jupiter and its entire little system could be commercially exploitable sooner or later. Once lunar operations become common enough I don't see what would stop commercial operations from Jupiter. Assuming, of course, there is something there valuable enough to be worth a round trip, and dealing with apparently wicked radiation.

RE: Will that help?
By Seemonkeyscanfly on 4/13/2007 4:13:43 PM , Rating: 2
Wicked radiation....Hmmmm
We could send people with cancer - get radiation treatment for free, actually get paid for treatment. There will not be anything left of your cancer cells after the visit, of course there might not be much left of any other cells. Hey, but what the hell you got to go to Jupiter, see the Giant red spot up close and avoid the Cylons. All in all I say a good deal.

RE: Will that help?
By Etsp on 4/12/2007 5:21:56 PM , Rating: 2
Are you confusing Jupiter's gravity with the gravity of a black hole? Cause if I remember correctly, Jupiter's gravity wouldn't do that to you.

RE: Will that help?
By Seemonkeyscanfly on 4/12/2007 5:44:35 PM , Rating: 2
Someone correct me if I'm wrong. The ratio x lbs to x + bls I no is wrong:
The Gravity on Jupiter is something like 1,500 to one (guessing but I know it up there). So, a 200 lbs man becomes 300,000 lbs. Your bones can not even handle a bite of 2,400 lbs from a pit bull, and so they break...So at 300,000 lbs you become like a liquid and are pulled as close to the ground as possible, which spreads your body all over the place, yuk.. In a black hole you are compacted together into a really, really, really small dot of space not a good thing if you are claustrophobic, or so one theory goes.

RE: Will that help?
By PlasmaBomb on 4/12/2007 6:23:04 PM , Rating: 2
Can I correct you?
If a man weighs 200lb (~91 kg) on the surface of the earth his mass would be ~91/9.81 = 9.267 kg. So assuming that he was on a spacecraft suitably equipped to fly along on the surface of Jupiter (~71,000 km from Jupiters’ core), the same man would weigh 9.267*24.79 = 229.73 kg or 505.4 lb, so whilst moving around would be an effort, he would be far from 1/10 mm thick (at least due to the gravity).
When pit bulls bite they apply a pressure of over 2000 psi which is very different to 2400 lb.
If you were to fall into a black hole you would end up as a very long string (think spaghetti) because of the massively different tidal forces on your head and feet.
If you were to fall into a black hole you would end up as a very long string (think spaghetti) because of the massively different tidal forces on your head and feet.

RE: Will that help?
By PlasmaBomb on 4/12/2007 6:24:04 PM , Rating: 2
Doh ignore the double last sentence

RE: Will that help?
By oTAL on 4/13/2007 10:11:46 AM , Rating: 2
If a man weighs 200lb (~91 kg) on the surface of the earth his mass would be ~91/9.81 = 9.267 kg.

I'm not sure about the rest of your post but this line was stupid enough for me (or maybe you're tired and you made a mistake).
Do you the difference between mass and weight? Mass is an absolute concept and you are confusing Kg with Newtons. You probably meant that if someone weighs 91KgF = ~910N, then his mass would be (pretty much anywhere) 91Kg.
The rest of your post kind of makes a good argument about the distance from the center of mass of a given object which is important when discussing gravitational pull.

RE: Will that help?
By plinden on 4/12/2007 7:22:38 PM , Rating: 2
Not quite - from Jupiter's wikipedia entry "... the equatorial surface gravity of 24.79 m/s2 ..." (m is meters, not miles). If you don't accept the accuracy of Wikipedia, try

That's roughly 2.5g (Earth's surface gravity is 9.8m/s2, so a 200lb-on-earth man would weigh 500lb. Heavy, but considering the large numbers of large Americans I see every day, it's not extreme.

RE: Will that help?
By PlasmaBomb on 4/12/2007 5:59:15 PM , Rating: 2
The second paragraph says that the planet is Jupiter like it's an analogy. Therefore we don't need any volunteers...

RE: Will that help?
By namechamps on 4/12/2007 6:17:24 PM , Rating: 2
This is just a first step. Proof that another planet was water. They started with large planets because they are much easier to detect at a range of millions of miles. Now that they know a "jupiter like" planet has water we likely will find another earth like planet with water in the future. The first is always the hardest. It's like saying man that first CPU sucked because it only ran 3mhz and you can't play Quake on it. If it hadn't been created nothing after it would have come along.

RE: Will that help?
By Seemonkeyscanfly on 4/12/2007 7:31:36 PM , Rating: 2
Well thanks to: Masher2, PlasmaBomb, namechamps, and a point made by etsp, I feel a little wiser today. Either it's been to many years since I had a science class, guess near 17 years, or theories (back then) have changed or been corrected. Thanks for clarifying my question on the value of this study.

RE: Will that help?
By PlasmaBomb on 4/12/2007 8:10:07 PM , Rating: 2
Everyday you learn something new, and hopefully it makes you a better person and the world a better place. That is why people do research on numerous subjects.

"This is from the It's a science website." -- Rush Limbaugh
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