All Questions
16
questions
0
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51
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What would the weather and climate be like on an Earth-size Mars with an atmospheric pressure of 1 atm? [duplicate]
Assuming the planet still has the same atmospheric composition as the real-world Mars (95% CO2, 3% N2, and 1.3% Ar) and has a global temperature of 284K (10.85°C) based on the answer to my previous ...
- 91
3
votes
2
answers
129
views
Would a planet whose sun is always in one place have weather?
The world I’m writing atm has a planet whose sun is described as being permanently moved above its North Pole. Because of a lack of technology (and interest) in outer space, they wouldn’t have a ...
- 31
4
votes
1
answer
173
views
Weather and climate of an Earth-like planet orbiting an orange dwarf
I am creating a solar system with fictional planets as a setting for my space novel.
Luckily I have some nice tools for creating quite accurate astronomical data. The planet where my protagonists live ...
3
votes
3
answers
173
views
Would the substellar point on a tidally locked planet with a large continent over that point and oceans around the edges be covered in rainforest?
I have been working on a tidally locked planet for some time now. During this time I have worked under the assumption that the substellar point would be arid because of the constant bombardment of ...
- 31
7
votes
3
answers
502
views
Can my Planet Have Liquid Water at the Poles -- But Only During the Winter?
I have a planet about the size of earth. It is a desert planet with an atmosphere at 0.1 atm, made of 90% co2 and 10% n2. Water at this pressure should freeze at 35℉ and boil at 125℉. The planet has a ...
- 611
1
vote
2
answers
277
views
Is this an accurate environment for life on a super Earth speculatively?
My alien planet is a super Earth. It revolves around a K-type star in the habitable zone and has a lower gravity. The mass is that of 2 Earths(or how ever superearths mass normally are).The atmosphere ...
- 491
1
vote
1
answer
48
views
How can a planet's seasons be only controlled by either its land, sky or water?
I have a planet established (similar to Earth) which instead of countries has 3 main zones of habitation: land, water & sky. Each supernatural inhabitant looks after one natural part of this ...
- 532
4
votes
1
answer
1k
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What would the atmosphere of the Archaean Earth look like? (Before massive oxygenation)
I am designing an exoplanet in the Alpha Centauri system that is remarkably like ancient Earth before photosynthetic life developed and proliferated oxygen into the air.
For Archaean Earth's ...
- 405
2
votes
1
answer
176
views
How can a planet have relatively common lethal hailstones?
Sometimes hailstones reach sizes that are deadly to large animals and people and livestock have been killed. This is a relatively rare occurrence on Earth of course. If I want a planet where lethal ...
- 1,154
0
votes
2
answers
205
views
Earth-like planet which is smaller but has the same gravity
If there were a planet similar to earth where the lines of latitude and longitude were half as far apart (about 35 miles instead of about 70), but the planet's density were increased to compensate for ...
- 63
38
votes
2
answers
6k
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Terrestrial Exoplanet Skies – I've Built a Visual Sky Chart. Is it Correct?
I'm an artist and I've been trying to find a comprehensive resource that would help me clearly identify likely sky colors for exoplanets that have atmospheres with a similar chemical composition to ...
- 1,150
4
votes
3
answers
389
views
What are the atmospheric conditions on a planet tidally locked to its moon?
Assume that we have a earth like planet,orbiting a sun like star. On which have all the right ingredient:atmosphere,liquid water,molten metal core.....etc for the existence of the life as we known it. ...
- 41
6
votes
5
answers
1k
views
If our moon had an atmosphere, could it have seasons?
Because our moon is tidally locked with Earth, then the same half always faces the Earth regardless of where the Moon is in its orbit. As such, would a tidally locked satellite such as our moon (...
- 61
4
votes
3
answers
200
views
Effects of an alien weather generator?
An alien race wants to test out its new technology that modifies the atmosphere of Earth and other terrestrial planets, they decide to center it over Central Park, NYC. One of the first things they ...
- 2,319
6
votes
2
answers
410
views
Can a terrestrial planet have a long lasting hurricane like the great red spot?
I want to create a terrestrial planet with a very long lasting hurricane similar to the great red spot, I assume the planet will have to be covered by ocean. Could there still be some small islands? ...
- 2,319