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New Type of Alien Planet Is a Steamy 'Waterworld'
space.com ^ | 02/21/12

Posted on 02/25/2012 4:22:01 PM PST by KevinDavis

To date, astronomers have discovered more than 700 planets beyond our solar system, with about 2,300 more "candidates" awaiting confirmation by follow-up observations.


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


TOPICS: Science
KEYWORDS: gj1214b; space; xplanets

1 posted on 02/25/2012 4:22:13 PM PST by KevinDavis
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To: Jack Hydrazine; ELS; ToxicMich; Cronos; Art in Idaho; perplyone; TheOldLady; Oiao; nepppen; ...



2 posted on 02/25/2012 4:23:43 PM PST by KevinDavis (Ron Paul called Ronald Reagan a miserable failure.....)
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To: KevinDavis

Astounding we can now see things at those kinds of distances.

Also interesting is that most of the planets being found appear to belong to dwarf stars; our situation is unusual.


3 posted on 02/25/2012 4:25:13 PM PST by varmintman
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To: KevinDavis
"Scientists have discovered a new type of alien planet — a steamy waterworld that is larger than Earth but smaller than Uranus.

If I giggled to myself when I read this, does that mean I'm childish and immature?

4 posted on 02/25/2012 4:29:53 PM PST by Oberon (Big Brutha Be Watchin'.)
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To: KevinDavis

Interesting.


5 posted on 02/25/2012 4:30:02 PM PST by TBP (Obama lies, Granny dies.)
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To: KevinDavis

446f... how much pressure would it require for that to have liquid water seas?


6 posted on 02/25/2012 4:32:14 PM PST by GeronL (The Right to Life came before the Right to Pursue Happiness)
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To: varmintman

Its believed that 80% of the stars in the universe are red dwarfs and are only visible to us in infrared light. Seems like I read that we discovered one only about 6 light years away a few years back.

Considering the possibility that red dwarfs may last for as much as a trillion years (yes with a T) planets around them would be good places for life to exist. However the planet needs to be so close as to be tidally locked which presents problems for life. Still, the variables are nearly infinite so who knows.


7 posted on 02/25/2012 4:33:48 PM PST by cripplecreek (What does it profit a man if he gains the whole world but loses his soul?)
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To: Oberon

Scientists are tired of these stupid jokes so they’re changing the name of Uranus. I suggest Urectum.


8 posted on 02/25/2012 4:36:08 PM PST by cripplecreek (What does it profit a man if he gains the whole world but loses his soul?)
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To: Oberon

I wonder if they have any alien life forms?

9 posted on 02/25/2012 4:39:02 PM PST by smokingfrog ( sleep with one eye open (<o> ---)
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To: KevinDavis

can we send little Ricky there? He can certainly be elected there.


10 posted on 02/25/2012 4:47:40 PM PST by lilyfreeper
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To: GeronL
446 F is exactly 230 C ( Hmmm ) so consulting the PV diagram for water, a liquid vapor interface at that temperature would require a pressure of about 4 MPa. Noting that 100 C requires 0.1 MPa, we see that this is about 40 atmospheres. Then at 33 feet per atmosphere, that's 1320 feet of ocean depth on earth.


11 posted on 02/25/2012 4:51:20 PM PST by dr_lew
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To: dr_lew

So... it might actually be possible on a world that is 2.7 times bigger than Earth. Of course the vast majority of that water is probably going to be in steam clouds as thick as the clouds on Venus. lol.


12 posted on 02/25/2012 4:54:02 PM PST by GeronL (The Right to Life came before the Right to Pursue Happiness)
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To: smokingfrog

Koreans in the water!!

heh


13 posted on 02/25/2012 4:54:59 PM PST by GeronL (The Right to Life came before the Right to Pursue Happiness)
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To: cripplecreek
Considering the possibility that red dwarfs may last for as much as a trillion years (yes with a T) planets around them would be good places for life to exist.

Glad you're planning ahead!

14 posted on 02/25/2012 5:10:50 PM PST by hinckley buzzard
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To: hinckley buzzard

I’m a prepper who doesn’t screw around.


15 posted on 02/25/2012 5:15:17 PM PST by cripplecreek (What does it profit a man if he gains the whole world but loses his soul?)
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To: Oberon

nah... just a pervert lol... ;)


16 posted on 02/25/2012 5:18:55 PM PST by sit-rep
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To: Oberon

“smaller than Uranus”

(beavis butthead laugh) umm hehehe you said yur anus..


17 posted on 02/25/2012 5:28:37 PM PST by max americana (Buttcrack Obama is an idiot)
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I can't believe I haven't seen this posted on here yet.


18 posted on 02/25/2012 5:30:58 PM PST by wastedyears (Signature for sale.)
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To: varmintman
"Also interesting is that most of the planets being found appear to belong to dwarf stars; our situation is unusual"

Sol is classified as a yellow dwarf.

19 posted on 02/25/2012 5:36:09 PM PST by Joe Brower (Sheep have three speeds: "graze", "stampede" and "cower".)
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To: KevinDavis

http://www.youtube.com/watch?v=HW_HnAgw_cI
Where is that guy with the hair when we need him?
`Aliens Gone Steamy Wild II’?


20 posted on 02/25/2012 5:39:00 PM PST by tumblindice (He walks, he talks, he crawls on his belly like a reptile--The Fake American President)
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To: KevinDavis
NASA as high def pictures of the Aliens and their dress parameters!


21 posted on 02/25/2012 5:47:29 PM PST by Young Werther
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To: GeronL

In the isothermal atmosphere model, the pressure doubling depth is kT/mg, and this is not so much different on the hypothetical steam planet than on earth.

g is almost the same, using the figures of 2.7 earth radii and 7 earth masses from the article. m is the mass of an atmospheric molecule, so this is less by about 18/28. kT is bigger by about 400/300, so that is just about double the exponential scale for earth’s atmosphere.

( All calculations subject to revision! )

I get about 18km for the steam planet, meaning that about 66 km above the vapor/liquid surface in the 446F steam atmosphere we should reach a pressure of 1 atmosphere, then 66km above that 1/40 atmosphere, and so on.

So, in terms of brute physics, it could be called “earthlike”.


22 posted on 02/25/2012 5:55:22 PM PST by dr_lew
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To: KevinDavis

No doubt the result of uncontrolled planetary warming caused by the oppressive sapient species ..

23 posted on 02/25/2012 6:25:07 PM PST by mikrofon (The bears get it on every world...)
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To: cripplecreek
Being tidally locked, one side always faces the sun, and the other side faces outerspace ~ so there's probably ice there ~ and in between liquid water ~ interspersed with islands and so forth.

DNA would have come up with some solution to the sleep problem ~ and being a planet quite a bit larger than Earth, the twilight zone is going to be quite a bit of territory for life to DO STUFF.

Only big problem I see in this is the highwinds flowing from cold to hot, or hot to cold, at various altitudes. They could very well drive ocean currents that would create some high stress regions ~

So, what to do with these planets ~ if there really are as many of them out there as we think?

We probably want to stay away from them since they may already be spoken for by more advanced civilizations ~ this stuff, after all, would constitute most of the best real estate in the cosmos. Second best are the various Dyson Spheres we may have already discovered (large black circular areas emitting infrared and nothing else ~ that's a Dyson Sphere with an internal central star Fur Shur). We are not likely to find those places hospitable either.

Could be as johnny come latelys we may need to focus instead on "Dark matter worlds" ~ out of sight, otherwise desolate, but amenable to human use if we can get some new, cheap, LENR on line).

24 posted on 02/25/2012 6:38:03 PM PST by muawiyah
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To: muawiyah

Like I said, the variables are nearly limitless.

Personally I like the idea of a red dwarf orbiting a sunlike star at a distance far enough out to allow a stable planetary orbit. This one mean one side of the planet would be in perpetual sunlight while the other side would have a day night cycle equal to its year. A 3 day orbit around the dwarf would mean 36 hours of day and 36 hours of night.

Obviously you would need an atmosphere capable of holding heat. An ocean covering enough of the planet to transport heat around the planet would be necessary.


25 posted on 02/25/2012 6:51:06 PM PST by cripplecreek (What does it profit a man if he gains the whole world but loses his soul?)
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To: KevinDavis; annie laurie; Knitting A Conundrum; Viking2002; Ernest_at_the_Beach; Mmogamer; ...

Thanks KevinDavis. I think it should be named "Agua Caliente" after the hellhole village in "For a Few Dollars More". But that's just my opinion.
 
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26 posted on 02/25/2012 8:22:44 PM PST by SunkenCiv (FReep this FReepathon!)
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