Kepler mission announces possibly habitable planets found (18 April)


by marcus
Tags: announces, april, habitable, kepler, mission, planets, possibly
marcus
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Apr18-13, 01:55 PM
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http://cosmiclog.nbcnews.com/_news/2...e-super-earths

Just announced 18 April. "Kepler-mission-makes-big-splash-with-possibly-habitable-super-earths".

These are in constellation Lyra. I can't evaluate how definite or reliable this is, but some readers may want to check it out.


Here is a YouTube by a scientist at Heidelberg MPI, named Lisa Kaltenegger. It's fairly informative.
http://www.youtube.com/watch?v=g5rW7...layer_embedded
The star is smaller and much cooler than our sun, so it would probably be reddish color. The planets are most likely rocky, with water, and might be entirely covered with ocean (no dry land).

It's not a place one would want to go :-D but it might turn out to be very interesting to study. Kaltenegger is a specialist in exoplanet atmospheres. She apparently thinks that it will eventually be possible to learn something about the atmospheres surrounding these planets. That would be a key to determining their temperature,and whether or not they could support life.
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mfb
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Apr18-13, 06:46 PM
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It's not a place one would want to go :-D
If it would be an option... why not?
She apparently thinks that it will eventually be possible to learn something about the atmospheres surrounding these planets.
Spectroscopy of exoplanet atmospheres is one of the major goals of E-ELT.
Mordred
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Apr18-13, 07:12 PM
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Thanks for the link. The amount of planets were discovering habitable or not is going up at an exponential rate.

marcus
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Apr18-13, 11:30 PM
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Kepler mission announces possibly habitable planets found (18 April)


Quote Quote by mfb View Post
...
Spectroscopy of exoplanet atmospheres is one of the major goals of E-ELT.
Mfb mentions the European Extremely Large Telescope, thanks Mfb!
http://en.wikipedia.org/wiki/Europea...arge_Telescope

40 meter diameter reflector, to be placed at 3 km altitude on mountain in Chile.

I would say that 5-minute YouTube by Lisa Kaltenegger represents a strong public argument for supporting the construction of E-ELT (not cheap, will cost about one billion euro)
http://www.youtube.com/watch?v=g5rW70-HnhA

Around 50 seconds into the first minute, at 0:51, she talks about detecting "signs of life" in the atmosphere of exoplanets. The presence of life would tend to affect the chemical composition of the atmosphere, so if you can do spectroscopy, see absorption lines etc, at a distance, and determine the chemical composition, it may be able to tell you about the presence of life.

The star "Kepler-62" is a K2 Dwarf, temperature would be 4400-4900 kelvin, I guess, based on table VII of this source http://articles.adsabs.harvard.edu/f...6AS...46..193H , if someone else has a better temperature table for types of stars please post the link.

Nasa has a newsletter about this.
http://science.nasa.gov/science-news...habitablezone/
reenmachine
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Apr19-13, 07:54 PM
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Very interesting.It seems they keep finding more and more planets that are in the habitable zone.Anybody else quietly thinking we might even discover signs of extra-terrestrial life in our lifetime?

Without getting too philosophical , would that be the greatest discovery in the history of mankind?
stargazer3
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Apr20-13, 12:48 AM
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Wow. Look at all these planets we can't go to.
*quitely hoping that a better propulsion mechanism is achievable by humankind*
mfb
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Apr20-13, 05:36 AM
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Quote Quote by reenmachine View Post
Anybody else quietly thinking we might even discover signs of extra-terrestrial life in our lifetime?
I think we have a reasonable chance for the first time in human history.
Without getting too philosophical , would that be the greatest discovery in the history of mankind?
I see spaceflight and [computers and the internet] are competitors. At least the second one is required for the discovery of extraterrestrial life, however.

Quote Quote by marcus View Post
E-ELT (not cheap, will cost about one billion euro)
Or ~2 € per inhabitant of the participating states.


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