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 A Planet Discovered May Be Able to Support Life

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Tiburon

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PostSubject: A Planet Discovered May Be Able to Support Life   Thu Apr 26, 2007 8:02 pm

http://dsc.discovery.com/news/2007/04/24/earthlikeplanet_spa.html?category=space&guid=20070424164530

Quote :
April 24, 2007 Astronomers have found the first Earth-sized world circling its mother star at a distance suitable for life. It also has good prospects for liquid surface water believed to be a key ingredient for life.

"This planet will most probably be a very important target of the future space missions dedicated to the search for extra-terrestrial life," said Xavier Delfosse, with Grenoble University in France.

It will be years before more sensitive instruments are developed to glean additional clues about whether life exists on the planet.

"It is not possible with current telescopes and instruments yet," Xavier Bonfils, an astronomer with the Lisbonne Observatory in Portugal, wrote in an e-mail to Discovery News. "But in the next decade, we may have the tools to answer this question."

The planet, which is about 50 percent larger than Earth, circles a star in the constellation Libra known as Gliese 581, about 20.5 light-years away. Light travels in a vacuum at about 187,000 miles per second.

Astronomers previously have found a Neptune-sized world circling Gliese 581, as well as strong evidence for a third planet about eight times the mass of Earth.

The new planet, which is the smallest planet beyond our solar system found to date, circles its star 14 times closer than Earth orbits the sun. But because Gliese 581 is smaller and colder than our sun, the system's so-called habitability zone, where liquid water and thus life is possible, is closer to the mother star than in our solar system.

Astronomers estimate the mean temperature of the newly discovered planet to be between 0 degrees and 104 degrees Fahrenheit.

"Water would be liquid," notes lead researcher Stephane Udry with Switzerland's Geneva Observatory. "Models predict that the planet should be either rocky like our Earth or covered with oceans."

The discovery likely will bolster efforts to find other Earth-like planets circling so-called red dwarf stars, which are the most common type of stars in our galaxy. Of the 100 closest stars to the sun, 80 are red dwarfs.

"Red dwarfs are ideal targets for the search for such planets because they emit less light, and the habitable zone is thus much closer to them than it is around the sun," Bonfils said.

Planets closer to their mother stars are typically easier to find than those farther away. The scientists, part of an international team from Switzerland, France and Portugal, submitted their findings for publication in the journal Astronomy and Astrophysics.

The discovery was made using with the Chile-based European Southern Observatory High Accuracy Radial Velocity for Planetary Searcher instrument.

Pretty sweet
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jellydonuts



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PostSubject: Re: A Planet Discovered May Be Able to Support Life   Thu Apr 26, 2007 10:59 pm

OMG.... some hope.... maybe?.... for the human race?...... alien

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The King
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PostSubject: Re: A Planet Discovered May Be Able to Support Life   Thu Apr 26, 2007 11:22 pm

HIGH FIVE GREAT SUCCES!!
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PostSubject: Re: A Planet Discovered May Be Able to Support Life   Fri Apr 27, 2007 3:40 am

actually it's not.... the chances that we will have the technology to take materials there to build, let alone build a transportation devices that can take us 21 light years away before we die 1,000,000 times over are more like

1.0x10-1,000,000

i highly doubt we'll be able to get there before this Earth runs out of energy... in other words.... WE ARE ALL GOING TO DIE!

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Tiburon

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PostSubject: Re: A Planet Discovered May Be Able to Support Life   Fri Apr 27, 2007 4:11 am

Mhmm

It's very unlikely

But still interesting, that there's another planet that's potentially inhabitable.. And kinda creepy
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PostSubject: Re: A Planet Discovered May Be Able to Support Life   Fri Apr 27, 2007 3:02 pm

NO SUCCESS confused
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rong3



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PostSubject: Re: A Planet Discovered May Be Able to Support Life   Wed Jun 08, 2011 8:57 am

Didn't you say you want to learn some fighting skill, Microsoft Office 2010 Professional Plusbut also the greatest talkers? And I said to transcend ride?" Lu fold hands have.ChuMing listened to, first laughed and said
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