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Results tagged with habitability
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user 31698
For questions asking about the conditions which are required for the development of life as we know it.
1
vote
Accepted
How would a person live on a gas giant?
Khaoskaphe
from Jupiter Submarine. https://what-if.xkcd.com/138/
Your character inhabits a khaoskaphe - a vehicle capable of traversing the various layers of the gas giant atmosphere. You can keep L …
- 306k
2
votes
Binary planets system day/night cycle
Don't forget the nightlight!
You would have day; yes yes. And night; well and good.
Also eclipses during the day.
But consider the night. Your brother planet is 10 times closer than the moon and pre …
- 306k
7
votes
How could a fusion device be held at the centre of a ring-shaped space habitat?
Your characters do not know how it works.
The ship is much older than anyone living on it. It is not known by your characters if it was designed by their ancestors or possibly found by their ances …
- 306k
3
votes
Fake, Heatless Sun-like object hovering over a person on Earth, how deadly it would be?
Let us assume that the Crimson King wears his glowy red ball like a hat or an elaborate do. It is right on top of his head. For calculations we will make the King himself of negligible height which …
- 306k
4
votes
Is life feasible in an inhospitable binary system?
Deep life
I am thinking of earth before the ozone layer formed. It was a rough place topside. Down by the black smokers in the deep ocean it was comparatively placid. Less hard radiation, water to …
- 306k
4
votes
How would griffins collect materials for their nests?
Griffins collect carcasses.
https://www.youtube.com/watch?v=21ybnsw3Zvo
Carcasses near the nests of small birds can be bad for the nestlings, because scavengers like crows and foxes are fond of eggs …
- 306k
12
votes
Plausibility check : a planet with tropical poles
It could be us!
https://mymodernmet.com/wp/wp-content/uploads/2018/02/climate-change-map-HD.jpeg
This map is sweet. I found the original that did not have the edges cropped! Most of the world has b …
- 306k
1
vote
Accepted
How long to become a habitable planet
As regards how long to habitability - the moon was formed 4.5 billion years ago and the Great Oxygenation Event was 2.5 billion years ago. So 2 billion years to a green sea and O2 atmosphere. …
- 306k
5
votes
Is this atmospheric composition breathable, and what would it look like?
At 500% you could get anesthetic effects from the nitrogen and possibly the xenon. Xenon is used as an anesthetic but at 1 atmosphere it requires 60-70%. I conclude it must be a more potent anestheti …
- 306k
18
votes
Why would Earth be long-term unsuitable for an advanced alien species that's already coloniz...
The aliens are humans.
The aliens did do the calculations and they did find a habitable planet, 100,000 years ago. They are depleting their homeworld - here.
On arriving on Earth and settling th …
- 306k
1
vote
Conditions for intelligent and diverse life at high altitudes
Altitude can be a proxy for latitude.
You can design your floating island ecosystems by thinking about ecosystems from varying latitudes on Earth. In places where there are big altitude differences t …
- 306k
27
votes
A Habitable Zone Within a Habitable Zone--Would that Make any Difference?
No habitable zones at all.
Consider a habitable zone. It receives enough radiation from its star (or star pair) such that water does not freeze or evaporate.
From OP "one habitable zone is deep insid …
- 306k
1
vote
What are the conditions of an Earth-like, water-ball planet?
You are thinking about nutrients and salts being washed off dry land and into the sea. But you could have those nutrients and salts expelled from the crust up into the water. You can have life arise …
- 306k
13
votes
How could I scientifically explain a world where the surface is made out of pillars?
A supernova explodes. Hurtling away is a molten blob of mixed elements.
As it slowly cools, the component elements stratify. The silicate mix slowly crystalizes, forming long needle-like spines pro …
- 306k
23
votes
What would cause plants to survive on the ground while restricting animals to the air?
There is one type of animal that lives on the ground.
source
Your plants are myrmecophytes or the alien equivalent. The plant - insect alliance is so successful that all existing plants are allied t …
- 306k