Kepler-22b planet just like Earth discovered

JonJon

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WASHINGTON - A newly discovered planet is eerily similar to Earth and is sitting outside our solar system in what seems to be the ideal place for life, except for one hitch. It's a bit too big.

The planet is smack in the middle of what astronomers call the Goldilocks zone, that hard to find place that's not too hot, not too cold, where water, which is essential for life, doesn't freeze or boil. And it has a shopping mall-like surface temperature of near 72 degrees, scientists say.

PHOTOS: AMAZING OUTER SPACE DISCOVERIES

The planet's confirmation was announced Monday by NASA along with other discoveries by its Kepler telescope, which was launched on a planet-hunting mission in 2009.

That's the first planet confirmed in the habitable zone for Kepler, which had already found Earth-like rocky planets elsewhere. Twice before astronomers have announced a planet found in that zone, but neither have been as promising.

"This is a phenomenal discovery in the course of human history," Geoff Marcy of University of California, Berkeley, one of the pioneers of planet-hunting outside our solar system, said in an email. "This discovery shows that we Homo sapiens are straining our reach into the universe to find planets that remind us of home. We are almost there."

The new planet - named Kepler-22b - has key aspects it shares with Earth. It circles a star that could be the twin of our sun and at just about the same distance. The planet's year of 290 days is even close to ours. It likely has water and rock.

The only trouble is the planet's a bit big for life to exist on the surface. The planet is about 2.4 times the size of Earth. It could be more like the gas-and-liquid Neptune with only a rocky core and mostly ocean.

"It's so exciting to imagine the possibilities," said Natalie Batalha, the Kepler deputy science chief.

Floating on that "world completely covered in water" could be like being on an Earth ocean and "it's not beyond the realm of possibility that life could exist in such an ocean," Batalha said in a phone interview.

Kepler can't find life itself, just where the conditions might be right for it to thrive. And when astronomers look for life elsewhere they're talking about everything ranging from microbes to advanced intelligence that can be looking back at us.



Read more: http://www.nydailynews.com/news/nat...rth-nasa-finds-article-1.987369#ixzz1fmDngILq

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JonJon

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What's even more amazing is that this planet has been in our own galaxy all this time.

Another article:

Are we alone in our galaxy?

It’s a question that the human race has been asking for centuries and one that NASA’s Roger Hunter and his team of more than 80 technicians, engineers and scientists are now trying to answer.

As the manager of the Kepler Space Telescope Project, Hunter leads NASA’s first mission to search our galaxy for Earth-size planets orbiting in habitable zones of their stars — the region around a star where temperatures permit water to be liquid on a planet’s surface. This condition is essential for the existence of life as we know it.

“We are trying to help answer some of the most fundamental questions the human race has pondered for generations,” said Hunter. “Are we alone? What is our place in the universe? “Is there another Earth? If so, how many are there?”

Launched on March 6, 2009, the Kepler Space Telescope, named after astronomer Johannes Kepler who developed the laws of planetary motion, is the largest telescope launched into deep space beyond Earth’s orbit.

“Kepler is the best little planet finder ever made,” said Hunter.

During Kepler’s three and a half year mission, the telescope is examining a star field between the constellations Cygnus and Lyra, Hunter said this region was chosen due to its large number of sun-like stars, and its accessibility to the northern hemisphere by ground-based telescopes for follow-up observation.

The Kepler Telescope detects planets as they pass in front of their stars, causing a tiny dip in the stars’ light. From the change in brightness across the stars, NASA scientists can then measure the size of the planet, and according to Hunter, “we can do a good calculation of the orbital period and the estimated surface temperature of the planet.”

The Kepler mission just confirmed its first planet, Keppler-22b. In Kepler’s first 134 days of observation, 1,235 planet candidates were detected with many the size of Jupiter or bigger. Hunter said about 54 of those planets are estimated to be in the habitable zone of the stars they orbit and 68 of the 1,235 are Earth-size.

“To put these discoveries into context, only 500 planets had been found out of our Solar System before Kepler,” said Hunter. “Kepler does an amazing job looking at these stars. Astronomers are saying that they will have to rewrite our textbooks because of what Kepler is finding.”

Read the full article here
 

DFWJC

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Love this stuff.
Thanks for posting.

And like was said above...in our own Galaxy. Seeing that there untold numbers of other galaxies, well, we can only imagine.
 

reddyuta

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JonJon;4293838 said:
What's even more amazing is that this planet has been in our own galaxy all this time.

Another article:

Are we alone in our galaxy?

It’s a question that the human race has been asking for centuries and one that NASA’s Roger Hunter and his team of more than 80 technicians, engineers and scientists are now trying to answer.

As the manager of the Kepler Space Telescope Project, Hunter leads NASA’s first mission to search our galaxy for Earth-size planets orbiting in habitable zones of their stars — the region around a star where temperatures permit water to be liquid on a planet’s surface. This condition is essential for the existence of life as we know it.

“We are trying to help answer some of the most fundamental questions the human race has pondered for generations,” said Hunter. “Are we alone? What is our place in the universe? “Is there another Earth? If so, how many are there?”

Launched on March 6, 2009, the Kepler Space Telescope, named after astronomer Johannes Kepler who developed the laws of planetary motion, is the largest telescope launched into deep space beyond Earth’s orbit.

“Kepler is the best little planet finder ever made,” said Hunter.

During Kepler’s three and a half year mission, the telescope is examining a star field between the constellations Cygnus and Lyra, Hunter said this region was chosen due to its large number of sun-like stars, and its accessibility to the northern hemisphere by ground-based telescopes for follow-up observation.

The Kepler Telescope detects planets as they pass in front of their stars, causing a tiny dip in the stars’ light. From the change in brightness across the stars, NASA scientists can then measure the size of the planet, and according to Hunter, “we can do a good calculation of the orbital period and the estimated surface temperature of the planet.”

The Kepler mission just confirmed its first planet, Keppler-22b. In Kepler’s first 134 days of observation, 1,235 planet candidates were detected with many the size of Jupiter or bigger. Hunter said about 54 of those planets are estimated to be in the habitable zone of the stars they orbit and 68 of the 1,235 are Earth-size.

“To put these discoveries into context, only 500 planets had been found out of our Solar System before Kepler,” said Hunter. “Kepler does an amazing job looking at these stars. Astronomers are saying that they will have to rewrite our textbooks because of what Kepler is finding.”

Read the full article here

I dont think we have the capability to look for planets outside our galaxy and only a few hundred stars at present.I have no doubt that such a planet exists elsewhere though.
 

casmith07

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Build a craft and blast off for it.

That's the kind of stuff we should be figuring out. If it's inhabitable, we need to know about it.
 

SaltwaterServr

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We're not even alone in our own solar system. I've no doubt that Enceladus, Io, or Europa have life on them. Mars also.
 

ScipioCowboy

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casmith07;4294070 said:
Build a craft and blast off for it.

That's the kind of stuff we should be figuring out. If it's inhabitable, we need to know about it.

Go for it!

See ya in a few thousand years....
 

casmith07

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ScipioCowboy;4294286 said:
Go for it!

See ya in a few thousand years....

Well, my point is that they should be using nuclear fusion/fission technology to create a powersource that can get there quick.

All these science-fiction movies, etc. have "light jumps" or "hyperdrive" -- time to make it a reality.
 

YosemiteSam

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SaltwaterServr;4294112 said:
We're not even alone in our own solar system. I've no doubt that Enceladus, Io, or Europa have life on them. Mars also.

Yep, Enceladus is easily the most likely to have life considering it's surface is a ball of water with a hot core. Underneath the frozen surface, there is an ocean that parts of it are surely liquid water within an acceptable temperature. Especially considering their are life forms at the bottom of our ocean who live near where lava is erupting on the deep sea floor in water temperatures of near 200 degrees.
 

Ren

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JonJon;4293838 said:
What's even more amazing is that this planet has been in our own galaxy all this time.

I don't find that amazing at all, there's about 200 billion stars in our galaxy alone so even by the most modest estimates there should be millions of planets like this in the liquid water zone around other stars.
As telescopes becomes more and more powerful expect to see news like this on a regular basis, specially when we make once that can spot Earth sized planets.
 

YosemiteSam

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Ren;4294976 said:
I don't find that amazing at all, there's about 200 billion stars in our galaxy alone so even by the most modest estimates there should be millions of planets like this in the liquid water zone around other stars.
As telescopes becomes more and more powerful expect to see news like this on a regular basis, specially when we make once that can spot Earth sized planets.

Damnit, I expect to find one with my telescope! (10" Dobsonian) :)

https://lh6.***BROKEN***/-iqtle5g15lc/Thpbb8UwToI/AAAAAAAAAVM/t8PD6iLBl-k/s512/IMG_20110710_220932.jpg
 

Hoofbite

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I hope we never find another intelligent race. At least not one smarter than us.

I'm sure they'd be enthused to hang out with us.

How's about dinner from McDonald's and an episode of Jersey Shore?
 

Cowboy Brian

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Hoofbite;4295271 said:
I hope we never find another intelligent race. At least not one smarter than us.

I'm sure they'd be enthused to hang out with us.

How's about dinner from McDonald's and an episode of Jersey Shore?

I'm sure they would be ashamed with the lack of natural resources they attain from their conquest.
 

YosemiteSam

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Romo 2 Austin;4295280 said:
I'm sure they would be ashamed with the lack of natural resources they attain from their conquest.

You mean these resources?

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We are talking Aliens, not Zombies. :laugh2:
 
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