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Oxygen at Extrasolar Planet, a First
space.com ^ | 02/02/04 | Tariq Malik

Posted on 02/02/2004 6:01:13 PM PST by KevinDavis

Astronomers have detected the first presence of oxygen and carbon in the atmosphere of an extrasolar planet, a world already known to be venting massive amounts of gas into space.

The find is evidence of an atmospheric "blow off" in action, where energetic hydrogen gas drags heavier elements along for a supersonic ride into space.

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


TOPICS: Miscellaneous; News/Current Events
KEYWORDS: crevolist; nasa; oxygen; space; spaceexploration; xplanets
Well if there is oxygen on a different planet, there has to be a Earth like planet. I think in 50 years we will find a Earth like planet outside this solar system. Time to develop warp speed.
1 posted on 02/02/2004 6:01:14 PM PST by KevinDavis
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To: KevinDavis
Hopefully we'll find a planet that isn't having an "atmospheric blow-off". Somehow I just don't like the sound of that.
2 posted on 02/02/2004 6:02:40 PM PST by BenLurkin (Socialism is Slavery)
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To: Normal4me; RightWhale; demlosers; Prof Engineer; BlazingArizona; ThreePuttinDude; Brett66; ...
Space Ping! This is the space ping list! Let me know if you want on or off this list!
3 posted on 02/02/2004 6:03:25 PM PST by KevinDavis (Let the meek inherit the Earth, the rest of us will explore the stars!)
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To: BenLurkin
Hopefully we'll find a planet that isn't having an "atmospheric blow-off". Somehow I just don't like the sound of that.

Itll be the new phrase that replaces "Greenhouse effect" or "Global Warming".

4 posted on 02/02/2004 6:16:18 PM PST by smith288 (If terrorist hate George W. Bush, then he has my vote!)
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To: KevinDavis
Oxygen in an atmosphere and earthlike do not nescessarily have any realtionship at all.
5 posted on 02/02/2004 6:19:05 PM PST by templar
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Comment #6 Removed by Moderator

To: templar
You are correct and the detection of oxygen is not that surprising. Oxygen is a natural by-product of the carbon cycle (sometimes called the CNO cycle) of the proton-proton nuclear reaction of early-type stars.

Now if they detect molecular O2, then my ears would perk up very rapidly!

7 posted on 02/02/2004 6:31:07 PM PST by Hunble
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To: templar
Oxygen in an atmosphere and earthlike do not nescessarily have any realtionship at all.

Earthlike, No! Far from it! But is there another process other than photosynthesis that would explain free oxygen in significant quantities in a planetary atmosphere?

8 posted on 02/02/2004 6:40:26 PM PST by night reader
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To: RadioAstronomer; PatrickHenry
Oxygen detected on a distant planet.

Conventional wisdom says holds that oxygen in stable quantities in a planetary atmosphere would have to mean some replenishment (from a life form) since oxygen is so reactive.

But in this case it seems to be some massive geo-chemical mechanism unrelated to life processes.
9 posted on 02/02/2004 6:49:39 PM PST by edwin hubble
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To: KevinDavis
I think in 50 years we will find a Earth like planet outside this solar system

It's going to be almost impossible to find Earth-like planets without actually venturing out there to find them. They're too small and too far away.

I hate to say it, but barring a revolution in physics (along the lines of anti-gravity) 50 years may be a bit optimistic.

10 posted on 02/02/2004 6:57:59 PM PST by irv
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To: *crevo_list; VadeRetro; jennyp; Junior; longshadow; RadioAstronomer; Physicist; LogicWings; ...
PING. [This ping list is for the evolution side of evolution threads, and sometimes for other science topics. FReepmail me to be added or dropped.]
11 posted on 02/02/2004 7:02:59 PM PST by PatrickHenry
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To: irv
"It's going to be almost impossible to find Earth-like planets without actually venturing out there to find them. They're too small and too far away."

Interferometry with a baseline distance of Jupiter's orbit could give us the needed resolution.
12 posted on 02/02/2004 7:09:54 PM PST by edwin hubble
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To: KevinDavis
well... actually warp is not a speed.... it is bending space to go from one point to another without actually increasing their literal speed... would take a massive amount of power and gravitational manipulation and I wouldn't want to be near a planet if I did it
13 posted on 02/02/2004 7:11:14 PM PST by GeronL (www.ArmorforCongress.com ............... Support a FReeper for Congress)
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To: edwin hubble
Interferometry with a baseline distance of Jupiter's orbit could give us the needed resolution.

Now that is one space project that will be worth it's weight in gold.

Sign me up as a very willing taxpayer for that project!

14 posted on 02/02/2004 7:14:35 PM PST by Hunble
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To: Hunble
Now if they detect molecular O2, then my ears would perk up very rapidly!

Not necessary, Mercury's atmosphere contains 5.6% molecular Oxygen and I don't think there is life there.

15 posted on 02/02/2004 7:26:50 PM PST by qam1 (Are Republicans the party of Reagan or the party of Bloomberg and Pataki?)
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To: qam1
You are correct of course and you had me curious.

The key is Mercury's rather unusual temperature variations:

min 90K
mean 440K
max 700 K

For molecular O2 to form, the temperature must be low enough.

P.S. For those who do not understand temps in Kelvin, 273 K is the freezing point of water, or 0 degrees Centigrade.

16 posted on 02/02/2004 7:39:32 PM PST by Hunble
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To: PatrickHenry
Thanks for the ping!
17 posted on 02/02/2004 8:47:30 PM PST by Alamo-Girl
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Comment #18 Removed by Moderator

To: Hunble
The tau project would be way kewl!

Orbit of Jupiter feh! The tau project envisions sending two probes Thousands of Astromical Units out of the plane of the galaxy, giving us the ability to both see the center of the galaxy in visible light and to take stereo images of the whole galaxy.

Imagine two Hubble class optical telescopes teamed with two Aricibo class radio telescopes with a few thousand AU base line!

19 posted on 02/03/2004 6:59:01 AM PST by null and void
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To: KevinDavis
The article doesn't say whether the oxygen is atomic, molecular or ionized. It also doesn't say anything about the planet's mass.
20 posted on 02/03/2004 9:34:31 AM PST by <1/1,000,000th%
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To: KevinDavis
"venting massive amounts of gas.."

Ted Kennedy's home planet?
21 posted on 02/03/2004 9:38:47 AM PST by reagan_fanatic (I'd rather be driving my '57 Chevy)
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To: KevinDavis
Well if there is oxygen on a different planet, there has to be a Earth like planet. I think in 50 years we will find a Earth like planet outside this solar system. Time to develop warp speed.

If we find a planet that we can live on, and then realistically get to, I'll start saving up for realestate on the new planent. I'd like to get off this sinking ship before it goes down.

22 posted on 02/03/2004 9:46:41 AM PST by realpatriot71 (It's time to build a freakin' wall!)
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To: JackRyanCIA
When life first began on earth the atmosphere was primarily methane and ammonia.

Sorry, that formula has been updated. The early earth atmosphere was not a reducing atmosphere. It consisted mainly of CO2, H2O, and N2. Reflections From a Warm Little Pond

Now the Oxygen signal(free oxygen, I presume that is what they are talking about in this article) no longer signals life.

From the article ---- Despite the oxygen, the faraway planet is not one that would support life.

23 posted on 02/04/2004 7:58:57 PM PST by AndrewC (I am a Bertrand Russell agnostic, even an atheist.</sarcasm>)
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Comment #24 Removed by Moderator

from 2004.
 
X-Planets
· join · view topics · view or post blog · bookmark · post new topic ·

25 posted on 11/03/2007 10:44:12 AM PDT by SunkenCiv (Profile updated Monday, October 22, 2007. https://secure.freerepublic.com/donate/)
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