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K2-18b

Anonymous Wed 11 Sep 20:03:43 2019 No.10964809 View Reply Original Report

Quoted By: >>10965415 >>10965654 >>10965727 >>10967107 >>10967114

What is it? Astrophysics- and astrogeology fags, hit us with your best predictions and models based on the available data.

arxiv org/abs/1909.04642

Anonymous

Anonymous Wed 11 Sep 2019 23:14:48 No.10965415 Report

Quoted By: >>10966011

>>10964809
>33 day orbit
>50% larger than earth
>Red dwarf that probably flares and irradiates the planet which has to be very close to the star to be considered 'habitable'
If life does live their it will never past step 5/6 of the Great Filter and therefore will only be a potential rest stop and potential source of water for other planets for our descendants.

Anonymous

Anonymous Thu 12 Sep 2019 00:26:11 No.10965654 Report

Quoted By: >>10966011

>>10964809
>50% bigger than earth
>Orbiting a red dwarf

Yeah, it's highly unlikely anything more than microbes live on that planet. Raindrops would fall with enough force to kill any Earth based life by comparison.

And any intelligent civilization that does evolve on that planet will never be able to leave because you would need a rocket with the mass of our moon to get into orbit.

Also radiation everywhere etc. All of this is assuming this planet isnt tidally locked, which is a strong possibility.

Anonymous

Anonymous Thu 12 Sep 2019 00:27:48 No.10965659 Report

Quoted By:

jesus this is assenine if there's methane; metheads, meatheds, & germs, ghouls; i'm sick of thishit outty

Anonymous

Anonymous Thu 12 Sep 2019 00:50:50 No.10965727 Report

Quoted By:

>>10964809
I think ocean life could be possible

Anonymous

Anonymous Thu 12 Sep 2019 02:47:16 No.10966011 Report

Quoted By: >>10966205 >>10967517

>>10965415
Habitable zones differ based on the star they orbit.
>great filter
Enough of this meme. You think life gives a shit? All it would take is several mutations that account for weakness to radiation, heat, etc. And, not only would you have intelligent life, but life that would easily be more fit to inhabit a planet such as our own.
>>10965654
>rain drops
You know Venus has 80% more mass than earth right? Size isn't everything and the metrics of that planet would not cause it to be uninhabitable at all.

If life had started on the planet by some means, it would be a prime candidate for allowing the flourish of intelligent life.

Anonymous

Anonymous Thu 12 Sep 2019 03:49:33 No.10966174 Report

Quoted By:

If we find molecular oxygen in its atmosphere, K2-18b is basically confirmed to have life. This would be huge, any way you put it.

Anonymous

Anonymous Thu 12 Sep 2019 04:14:11 No.10966205 Report

Quoted By:

>>10966011
venus
4.8675×10^24 kg
0.815 Earths

dumb retard

Anonymous

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Anonymous Thu 12 Sep 2019 10:49:51 No.10966750 Report

Quoted By: >>10966753

>K2-18b is 111 light-years
>First off, K2-18 b is roughly twice the diameter of Earth, which makes it about eight times as massive
>and it orbits a rather small red dwarf star that's roughly one-third the mass of our own Sun
no, most likley some bacteria live there, also is 110 light-years away, so is a waste of fucking time, even if you have a ship who can travel at 99.99% speed of light, you will need more than a century to go there and maybe find nothing.

Anonymous

Anonymous Thu 12 Sep 2019 10:53:22 No.10966753 Report

Quoted By: >>10967280

>>10966750
And that's why we need good deep space probes, to send and forget until we receive the got there ping.

Anonymous

Anonymous Thu 12 Sep 2019 14:42:22 No.10967102 Report

Quoted By:

Is life in its looses definition highly improbable? Boltzman must be laughin in heaven.

Anonymous

Anonymous Thu 12 Sep 2019 14:44:58 No.10967107 Report

Quoted By:

>>10964809
Not much to go, it would need a strong magnetic field, or an ocean deep enough to shield life forms from the radiation

Anonymous

Anonymous Thu 12 Sep 2019 14:51:19 No.10967114 Report

Quoted By:

>>10964809
>H and He in atmosphere
>4x Earth gravity
>faint red dwarf light
Probably the home planet of high-pitched short greys.

Anonymous

Anonymous Thu 12 Sep 2019 16:27:55 No.10967280 Report

Quoted By:

>>10966753
Giant space telescopes are better. You get the information right now and you can use them for other objects.
The lightsail probes are a nice proof of concept and are great for close objects.

Anonymous

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Anonymous Thu 12 Sep 2019 18:10:35 No.10967517 Report

Quoted By:

>>10966011
>You know Venus has 80% more mass than earth right?

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