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Hunt for Other 'Earths'
Washington Post ^ | 04/27/09

Posted on 04/27/2009 6:23:36 PM PDT by KevinDavis

Recent discoveries by planet-hunters have made astronomers more optimistic that the universe has plenty of rocky, Earth-like planets that occupy the "habitable zone" around stars.

Since the discovery in 1995 of the first "exoplanet," astronomers have found more than 300 such worlds, almost all of them Jupiter-size "gas giants," the easiest to detect with today's technology. There has been speculation that such giant planets may migrate closer to their parent stars and, en route, obliterate any smaller, Earth-like bodies.

But that seems a bit less likely with the announcement last week by Swiss astronomer Michel Mayor and colleagues of the discovery of two planets orbiting the red dwarf Gliese 581, a relatively small, cool star about 20 light years from Earth. One of the planets, orbiting extremely close to the star, is 1.9 times the mass of Earth, the smallest "exoplanet" found to date. The other, about seven times the mass of Earth, is even more intriguing, for it is much farther from the star, at a distance that appears to place it in the theoretical habitable zone, where water might be able to remain liquid on the surface, as is the case with Earth.

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


TOPICS: Miscellaneous
KEYWORDS: earth; gliese581; space; xplanets
We will find an another Earth..
1 posted on 04/27/2009 6:23:36 PM PDT by KevinDavis
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To: markman46; AntiKev; wastedyears; ALOHA RONNIE; RightWhale; anymouse; Brett66; SunkenCiv; ...

2 posted on 04/27/2009 6:24:10 PM PDT by KevinDavis (Now a member of the NRA)
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To: KevinDavis

As long as it doesn’t have electrical water and mole people.


3 posted on 04/27/2009 6:30:17 PM PDT by cripplecreek (The poor bastards have us surrounded.)
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To: cripplecreek; All

or any cyborgs...


4 posted on 04/27/2009 6:31:08 PM PDT by KevinDavis (Now a member of the NRA)
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To: KevinDavis

Unless they’re hot lonely cyborgs.


5 posted on 04/27/2009 6:32:06 PM PDT by cripplecreek (The poor bastards have us surrounded.)
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To: KevinDavis

or any liberals


6 posted on 04/27/2009 6:32:40 PM PDT by EAGLE7 (They make take our lives but they'll never take our freedom!)
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To: KevinDavis

No. We won’t. We are alone.


7 posted on 04/27/2009 6:39:52 PM PDT by PackerBoy (Just my opinion ....)
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To: PackerBoy; All

How do you know that???


8 posted on 04/27/2009 6:41:01 PM PDT by KevinDavis (Now a member of the NRA)
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To: PackerBoy
There's Billions and Billions


9 posted on 04/27/2009 7:10:39 PM PDT by caveat emptor
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To: KevinDavis

That’s what Adama said...


10 posted on 04/27/2009 7:11:27 PM PDT by Redcitizen (December 21, 2012; there's change for ya!)
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To: KevinDavis

>How do you know that???

Look at the liberals on THIS planet.
QED.


11 posted on 04/27/2009 7:19:03 PM PDT by OneWingedShark (Q: Why am I here? A: To do Justly, to love mercy, and to walk humbly with my God.)
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To: KevinDavis

Good luck with that search. Please don’t use any of my tax money chasing your tails over it.


12 posted on 04/27/2009 7:22:00 PM PDT by j_tull (I may make you feel, but I can't make you think.)
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Comment #13 Removed by Moderator

To: cripplecreek
Here's a hot number for you...
14 posted on 04/27/2009 7:36:05 PM PDT by Redcitizen (December 21, 2012; there's change for ya!)
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Comment #15 Removed by Moderator

To: KevinDavis; annie laurie; garbageseeker; Knitting A Conundrum; Viking2002; Ernest_at_the_Beach; ...
Thanks Kevin.
 
X-Planets
· join · view topics · view or post blog · bookmark · post new topic ·
Google news searches: exoplanet · exosolar · extrasolar ·

16 posted on 04/27/2009 7:40:28 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/____________________ Profile updated Monday, January 12, 2009)
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To: KevinDavis

Don’t hold your breath.


17 posted on 04/28/2009 5:16:15 AM PDT by onedoug
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To: KevinDavis
The other, about seven times the mass of Earth, is even more intriguing, for it is much farther from the star, at a distance that appears to place it in the theoretical habitable zone, where water might be able to remain liquid on the surface, as is the case with Earth.

Intriguing indeed. Imagine a huge "ocean planet" and what might be living there. Wow! Staggers the imagination.

18 posted on 04/28/2009 3:59:37 PM PDT by LiberConservative
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