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Early Kepler results: Up to 140 Earth like Planets!

PurpleBuddha

Rear Admiral
Rear Admiral
"Hundreds of new planets have been discovered by Nasa's new space probe, sparking new hope of life outside our solar system. Up to 140 of the newly-found planets are rocky and Earth-like containing both land and water, conditions which could allow simple lifeforms to develop."

http://www.spaceref.com/news/viewnews.html?id=1415


I realize they still have a lot of analyzing to do of these early results, but I am pumped. I think these findings are stunning.
 
Kepler mission likely to confirm new real estate markets.

or

SCIENTISTS are celebrating the discovery of more than 700 suspected new planets - including up to 140 similar in size to Earth - in just six weeks of using a powerful new space observatory.
Early results from NASA’s Kepler Mission, a small satellite observing deep space, suggested planets like Earth were far more common than previously thought.


Just found that via another message board, on which I would be a Vice Admiral by now. Kirk would be jealous.

Anyway, if they ever confirm, visually, that habitable planets are out there, then there should be quite a boom in space travel research and technology developments and more money for whatever space agency we'll have then.
 
Re: Kepler mission likely to confirm new real estate markets.

Planets for everyone! ;)
 
[FONT=geneva,arial,verdana]You can see here [Chart] - small planets dominate the picture. The planets which are marked "like Earth" - definitely more than any of the other planets that we see. Now for the first time we can say that. There is a lot more work we need to do with this. Most of these are candidates and in the next few years - we will confirm them - but the statistical result is loud and clear - and the statistical result is that planets like our own Earth are out there. [Chart] Our Milky Way galaxy is rich in this kind of planet.[/FONT]

Wow! Exciting stuff!
 
ZZZZZzzzzzZZZZZZzzzzzzz...

Oh I'm sorry I'm falling asleep at the stupity of the science here. Life can take any form, it doesn't need a planet like Earth in order to do that. Plus there will never be proof that these planets have life, they are too far away, we should be spending more money on life in our solar system, that we could actually prove.
 
[FONT=geneva,arial,verdana]You can see here [Chart] - small planets dominate the picture. The planets which are marked "like Earth" - definitely more than any of the other planets that we see. Now for the first time we can say that. There is a lot more work we need to do with this. Most of these are candidates and in the next few years - we will confirm them - but the statistical result is loud and clear - and the statistical result is that planets like our own Earth are out there. [Chart] Our Milky Way galaxy is rich in this kind of planet.[/FONT]
Wow! Exciting stuff!

It is, isn't it? I can't wait to see what it discovers next!
 
ZZZZZzzzzzZZZZZZzzzzzzz...

Oh I'm sorry I'm falling asleep at the stupity of the science here. Life can take any form, it doesn't need a planet like Earth in order to do that. Plus there will never be proof that these planets have life, they are too far away, we should be spending more money on life in our solar system, that we could actually prove.

1) How do you know life can take any form? Were not living on the set of Star Trek here, it's not self evident that energy beings and rock monsters will exist. It could be the case that it requires a narrow band of certain specific conditions to form.

2) Actually, I've read that we could make a reasonable guess that an extrasolar planet has life on it by analysing the content of it's atmosphere. For example we could detect an unusual abundance of gases in the planets atmosphere, that on Earth are caused by life. Plus the trouble with finding life in the solar system is that people would inevitably say it was caused by panspermia.
 
If you read the entire article linked in the first post, it says that the announcement of Earthlike planets is jumping the gun; they're only "candidates," photometric measurements that are consistent with planets between 2-3 Earth radii orbiting the observed stars but that could be explained by something else. As quoted near the bottom of the article, from NASA:
"Without the additional information, candidates that are actual planets cannot be distinguished from false alarms, such as binary stars -- two stars that orbit each other. The size of the planetary candidates also can be only approximated until the size of the stars they orbit is determined from additional spectroscopic observations made by ground-based telescopes."

Also, the media's references to these planet candidates having "land and water" is pure hyperbole -- there's absolutely no data to indicate any such thing. All we have are variations in stellar brightness that are consistent with bodies 2-3 times the radius of Earth passing in front of those stars. Some scientist must've suggested that these candidates, if the measurements are borne out, would be the right size of planet that could hypothetically be like Earth with land and water, and the reporters misunderstood or sensationalized as they always do with science news.
 
Re: Kepler mission likely to confirm new real estate markets.

Yes, but this article is more based in fact than the other one. "Earth-sized" is the key term, but the other one says "Earth-like", which has a different connotation to the unwashed masses.
 
I want to be ruler over my own planet dammit! :evil:

Isn't there a possibility of habitable moons around gas giants in the "earth zone" orbiting in various solar systems in our galaxy???
 
Sometime I wonder if various life forms could float and/or swim around in the atmosphere of a gas giant. I'm thinking the density could get high enough before reaching an pressure that would force all of the gases condense out. Then there would be a planet wide ocean for life to swim around in.
 
Okay, how many light years away are the star systems that have these earth-like planets?

First off, as I said, we don't actually know for certain yet that they are "Earthlike" planets. All we know at this point is that our measurements of variations in the brightness of a bunch of stars show a dimming that could be caused by planets 2-3 times the size of Earth passing in front of them. But they could be caused by something else. We don't know yet. And even if they are caused by planets of that size, that just means those planets might be Earthlike; there are other things they could be, like big balls of ice. I daresay it's likely that at least some of these 140-ish candidates will be planets similar to Earth, but to astrophysicists "Earthlike" just means made of rock and metal and not big enough to have a giant atmosphere. Venus and Mars are "Earthlike" in that sense.

As for how far away they are, naturally it varies considerably. And in many cases we probably don't know for sure; it will take more precise parallax measurements to improve our estimates. It's hard to gauge the exact distance to something that far away.
 
As Lindley says, there is a difference between Earth-like and Earth-sized.
Venus is Earth-sized. It's also an acid, high pressure, hell-hole where very few forms of Earlth life could survive (But there are enough bacteria-ish underwater volcano-living species on this planet for it possible)
 
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