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(io9)   What would a habitable planet twice the size of Earth be like? It might surprise you   ( ) divider line 11
    More: Interesting, Earth, planetary habitability, surface gravity, escape velocity, radius, hydrogen gas, albedo, lithosphere  
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10589 clicks; posted to Geek » on 04 Dec 2013 at 5:36 PM (1 year ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»

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2013-12-04 03:57:47 PM  
4 votes:
What would wild ass speculation be like? Irrelevant until we have the technology to travel interstellar distances.
2013-12-04 03:56:45 PM  
3 votes:
I got about a paragraph and a half in before deciding I had no idea what the hell he was talking about.
2013-12-04 04:12:37 PM  
2 votes:
2013-12-04 10:09:41 PM  
1 vote:

legion_of_doo: zimbach: I came expecting Kerbal Space Program screenshots; leaving disappointed.

i thought KSP was about blowing up little green retards in stupid big rockets!

That's only half the game. There's a whole solar system of planets and moons to explore and crash into and abandon those little green retards on.
2013-12-04 09:27:44 PM  
1 vote:
Catchy title that creates interest.

random text that really doesn't help.
2013-12-04 08:08:16 PM  
1 vote:

zimbach: I came expecting Kerbal Space Program screenshots; leaving disappointed.

i thought KSP was about blowing up little green retards in stupid big rockets!
2013-12-04 06:40:48 PM  
1 vote:
A long time ago on Slashdot I proposed a kind of inside-out Dyson sphere (people on the outside, like a planet, not on the inside facing a star)  that was about a light-year in diameter and massed about double the Milky Way Galaxy (iirc, it's been years since I scribbled on that napkin). At the surface, there would be 1 gravity, and it would blueshift the background radiation so your 2.7K temp would actually be in the range of liquid water.

Of course, you'd have to have a tiny shell of buckytubes or graphene sheets or something.

No clue what kind of atmosphere, clouds, or storms would result, or whether it would be safe to set it spinning, but I wanted something that dwarfed Ringworld. Not sure if this would be classed as a type III civilization, though.
2013-12-04 06:10:27 PM  
1 vote:
Well, it may seem unlikely we'll ever discover an inhabitable world twice the size of Earth, but when we do, let's hope we took the "High-G Environment" background.  It pays to get 100% production rate right off , although the enemy will usually just carpet bomb the planet during an attack, making the extra hit for ground troops somewhat less useful.
2013-12-04 05:59:23 PM  
1 vote:
unfortunately the badass blood oceans are cancelled out by the rather less-than-badass pink sky.
2013-12-04 05:46:50 PM  
1 vote:
Okay, guys, for those of you who didn't read the whole article:

Oceans would probably be red due to increased algae (more water means more moderated temps and, therefore, more algae, especially of the red variety) and the sky would, therefore, likely be pink in the evening/morning and purple during the day.  Happy now?
2013-12-04 04:17:04 PM  
1 vote:
I'm thinking it would be significantly roomier.
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