# Questions tagged [science-based]

For questions that require plausible (better than suspension-of-disbelief) answers based on Real World science that are not necessarily constrained to the known limits of Real World science. Contrast with the hard-science, science-fiction and internal-consistency tags. This tag may not be used alone. This tag may not be used with the science-fiction, hard-science, or internal-consistency tags.

17 questions with no upvoted or accepted answers
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118 views

### Blood on this ammonia planet

I am currently building a planet that weighs about 4 earth masses and is 2.3 earth radii long. It is an ammonia planet (as the title suggests), and has ammonia oceans with some dissolved water ice, ...
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219 views

### How does one calculate the baseline color of a world's sky, clouds, snow, and water?

I'm working on a planet for a book I'm hoping to write. I want it to be scientifically accurate wherever possible. I know that suspended particles can completely change these colors, but it looks like ...
74 views

### Roughly how big could the tidal range be on a human habitable Earth analogue world?

The Gravitational tidal forces can be supplied by any orbiting moon(s)/twin planet(s) of any mass and any orbital radius, inclination or orbital radius, but the system must be stable for at least 10,...
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103 views

### How differently would Earth's wind and ocean currents look if it were a shellworld the size of Neptune?

Earth is a quaint little green-and-blue marble 7,917.5 miles wide and 196,941,385 square miles in area. It's just small enough to create a busy, dynamic network of wind and ocean currents. These two ...
• 14.5k
64 views

### Would the atmospheric circulation experienced on my world's high platforms seem to be reversed?

In this world, that rotates in the same direction and at the same rate as Earth, where the land platforms that cover around 10-20% of the world's surface is (magically) suspended at the 1 ATM level, ...
• 60.3k
263 views

### What would the climate of a Pangaea-Ultima-inspired world be like?

In a sci-fi scenario, human explorers have discovered a binary of G0 stars, each one 105% as wide, 110% as massive and 126% as bright as our sun. Orbiting this binary within its habitable zone is an ...
• 14.5k
45 views

### Help with ocean current details on my terrestrial planet

I'm re-visiting the surface ocean currents on my world and was wondering about a few things. I know Ocean circulation is very complex and hard to say definitively what would happen but I think it's ...
• 123
133 views

### Climate types for large volcanic islands on tidally locked planet

My planet is tidally locked to a red dwarf, which itself orbits a yellow sun like our own. It has roughly the same atmospheric conditions as Earth (perhaps a slightly thicker atmosphere, but not ...
• 946
104 views

### Would it be biologically possible to have a species that use a photochromic material instead of an iris to control light intensity?

So in real life there is glasses that use photochromic lens to adapt to the light intensity Would it be biologically possible to have a species that use a photochromic material instead of an iris to ...
• 157
1 vote
52 views

### Could an organism breathe SO2 (Sulfur Dioxide) and reuse the sulfur atom for bones made of S8 (Octasulfur) and AlO3 (Aluminium Oxide)?

Problem Background I want animals on my fictional planet to use 6 SO2 (Sulfur Dioxide) instead of 6 O2 (Oxygen) to react with C6H12O6 (Glucose), to make 6 CO2 (Carbon Dioxide), ATP, 6 H2O (Water), and ...
1 vote
138 views

### Wind patterns on a tidally locked planets contradict my logic (looking for correction)

My take on the wind patterns on a tidally locked planet (TDL) does not lead to the information given in papers and videos. Please tell me where I went wrong. My take: On a TLP, the sub-solar point is ...
• 111
1 vote
156 views

### Which would be the Koppen-Geiger climate distribution of this map?

The existence of closed seas makes it difficult to me, especially the East one. I have it clear that in the souteast region the climate would be influenced by monzoon, but if the world has only one ...
1 vote
51 views

### In this infant (<500 million years) solar system, how far would each orbit be to be stable?

Here's the story: There is a solar system that is still a baby, less than 500 million years old. There are a total of eight stars clumped into four binaries, each one with its own habitable zone. ...
• 14.5k
80 views

### Workshopping a higher dimensions-based "magic" system?

I had this recent idea for a system which would allow for beings to defy our understanding of physics while being based on real theoretical physics, but I'd like some advice on how to make it work in ...
130 views

### Is My Solar System Plausible?

I have been working on and off on a worldbuilding project/speculative evolution project I want to document this Solar System's history from the beginning and essentially go into way more detail than ...
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