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Author Topic: Is it likely we'll hear news of aliens on planet Gliese 581d?  (Read 2132 times)

Offline diethyl

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 [O8)]The 'super earth' Gliese 581d, again proved to be existed, said by British scholars.  Is it possible that someone will be on the planet, and I can see this news?  What means the world science and technology would achieve the reduced to a great extent of
three hundred and fifty thousand years within this century


[MOD EDIT - please phrase subjects as questions in line with AUP]
« Last Edit: 09/03/2015 10:02:07 by Georgia »


 

Offline PmbPhy

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Re: Gliese 581d
« Reply #1 on: 09/03/2015 09:45:23 »
[O8)]The 'super earth' Gliese 581d, again proved to be existed, said by British scholars.  Is it possible that someone will be on the planet, and I can see this news?  What means the world science and technology would achieve the reduced to a great extent of
three hundred and fifty thousand years within this century
It's thought to be too hot due to a runaway greenhouse effect like that on Venus.
 

Offline evan_au

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Re: Gliese 581d
« Reply #2 on: 09/03/2015 10:06:22 »
Gliese 581 is about 20 light-years away from Earth, so it's a pretty "close" neighbor (by astronomical standards).
The planets have been detected because they wobble the star. But even our best telescopes can't actually see the planet because of the glare from the parent star.

There is a proposal to launch a space telescope called Starshade, which would block the light of the central star, allowing imaging of the planets around the star. If the planet is bright enough, it should be possible to collect a spectrum, and identify if it has an atmosphere, and what are the main chemicals in it.

That might give us some hints that life-as-we-know-it may exist on a planet. But the most likely way to detect intelligent life may be by detecting some form of communication, such as SETI is attempting.
 

Offline diethyl

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[O8)]The 'super earth' Gliese 581d, again proved to be existed, said by British scholars.  Is it possible that someone will be on the planet, and I can see this news?  What means the world science and technology would achieve the reduced to a great extent of
three hundred and fifty thousand years within this century
It's thought to be too hot due to a runaway greenhouse effect like that on Venus.
Too hot? It's said that there are rivers and mountains, I think the  temperature is appropriate.
 

Offline diethyl

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Re: Gliese 581d
« Reply #4 on: 10/03/2015 06:49:44 »
Gliese 581 [nofollow] is about 20 light-years away from Earth, so it's a pretty "close" neighbor (by astronomical standards).
The planets have been detected because they wobble the star. But even our best telescopes can't actually see the planet because of the glare from the parent star.

There is a proposal to launch a space telescope called Starshade [nofollow], which would block the light of the central star, allowing imaging of the planets around the star. If the planet is bright enough, it should be possible to collect a spectrum, and identify if it has an atmosphere, and what are the main chemicals in it.

That might give us some hints that life-as-we-know-it may exist on a planet. But the most likely way to detect intelligent life may be by detecting some form of communication, such as SETI [nofollow] is attempting.
It would be more to prove the existence of the planet if this way can be successful.
 

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Re: Gliese 581d
« Reply #4 on: 10/03/2015 06:49:44 »

 

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