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Results for habitability
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162 votes
Accepted

An Earth-like planet is found in another solar system. What are the top priorities after lan...

to construct a closed life support system, then you have no business trying to construct a colony many light years away, with no support and no backup and no actual certainty that the world is safe or habitable
Starfish Prime's user avatar
156 votes
21 answers
115k views

What is the minimum human population necessary for a sustainable colony?

How many humans are needed in order to sustain and grow a steady population in a habitable area? Assume resources are adequate and the environment is favorable. …
Maximillian's user avatar
  • 2,782
121 votes
Accepted

Could a planet made completely of water exist?

The planet then 'migrates' inwards and into the habitable zone. What qualifies as 'migrates' is a bit beyond me, but although it's unlikely to form in the habitable zone, it can move into it. …
Twelfth's user avatar
  • 24.3k
121 votes
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A list of worldbuilding resources

Celestial Mechanics Habitability/Goldilocks Zone Calculator for Earth-like planets Creating a realistic world(s) map - Stars Creating a realistic world(s) map - planetary systems Building the ultimate …
120 votes
7 answers
44k views

How would having multiple moons affect tides?

Assuming that a planet with several moons were habitable in the first place and has significant oceans (greater than 50% of the surface), what effect would multiple moons with independent orbits and revolution …
Monica Cellio's user avatar
119 votes
11 answers
26k views

Could a Dwarven Civilization Exist?

How can they cope with this and keep massive underground networks such as the Mines of Moria habitable? Today we use fans to generate circulating air networks. …
Mike Nichols's user avatar
  • 13.8k
109 votes

A planet you can take off from, but never land back

This made the planet habitable and allowed the aliens to terraform the planet and create an ecosystem. However, the alien civilization isn't there anymore. …
Philipp's user avatar
  • 49.1k
92 votes

Which major solar system body could most realistically be artificial?

and many others So many unique properties makes more realistic synthesizing habitable planets than searching them for single-galaxy civilization. …
Odomontois's user avatar
  • 1,431
86 votes
8 answers
9k views

Tree Shape on a Tidally Locked World

The habitable ring is an Earth analogue. The atmosphere and gravity are similar to Earth's, and we're going to pretend the wind is negligible. …
Zxyrra's user avatar
  • 20.6k
83 votes
Accepted

Can two adjacent, life-sustaining planets orbit a star such that they are rarely near each o...

You could put both planets in the habitable zone on horseshoe orbits. Janus and Epimetheus orbit Saturn on this type of orbit. …
Sean Raymond's user avatar
  • 3,574
67 votes

Why would precursors create devices that can survive and still work after hundreds of years?

The Precursors may even have sent out automated "seed ships" to build shelters on barely-habitable planets that they have never actually visited, as a "Safety Net" for Explorers and Travellers, like a …
Chronocidal's user avatar
  • 15.5k
66 votes
16 answers
12k views

An Earth-like planet is found in another solar system. What are the top priorities after lan...

Set in the not so distant future, we find a habitable planet very much like our own. The only downside is that it's around 500 years of travel with our current technological capabilities. …
FruityB's user avatar
  • 741
66 votes
27 answers
16k views

The land grows evil and corrupted ... but why?

Some parts remain normal and habitable. Not too limited. There should be enough corruption to create at least one Mordor-ish region. Long lasting. …
Random's user avatar
  • 5,996
65 votes
Accepted

Plausible reason not to notice a planet

If the planet is habitable, it's likely low-mass and thus unlikely to produce strong radial velocity shifts in the motion of the star. … Non-transit methods wouldn't have revealed much about its habitability from an atmospheric perspective. …
HDE 226868's user avatar
  • 102k
64 votes
18 answers
11k views

A city to last ten million years: Construction

To start off with, the inhabitants will have high technology; but the city should remain habitable if they regress to Iron Age or (possibly) Stone Age levels. … Edit: Mind-boggling though these timescales may be, the Earth is projected to remain habitable for about 1 billion years. …
Royal Canadian Bandit's user avatar

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