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I have the tables explaining time dilation for a single ship at different relativistic speeds, but am unsure how to modify that to work out for two ships at different velocities, and the two differ...
There are many interesting places, many interesting worlds. This world is not one of them. It has an argon atmosphere, and the planet itself is made of a very unreactive, insoluble, extremely diffi...
Related to my other question. What would be best conditions for a natural super colony of pearl oysters and the best conditions for them to produce pearls naturally. Shallow or deep waters? Slow...
Far south-west of the main continent exists an island in a shape of crescent moon with dense jungles and slender mountain peaks and a single city named Kalt stands in a place where the islands' ce...
Say there would be plants that release a lot of N2O (nitrous oxide or laughing gas). On Earth, N2O is a trace-gas and it is pretty stable. In our atmosphere it has a half-life of > 100 years, an...
I've been working on a project and I'm trying to make it as scientifically plausible as I can get it to be. Since space is large, and it's physically impossible in this universe to reach the speed ...
So, I've got a planet that's basically a junkyard. It's just one big junkyard. People from various space-faring societies dump all the crap there that they don't want to deal with. Derelict spacesh...
Are Trojan Planets Possible? Are Habitable Trojan Planets Possible? A Trojan relationship is when an astronomical object A is orbited by astronomical object B, and a third object, C, orbits A at ...
To clarify, I realised that I kind of ran into a problem trying to check the orbital stability of two fictional planets in orbit around the real life 61 Cygni binary star star system. To explain...
The planet I have in mind is slightly larger than Mars and is located in the system behind a planet about twice the size of Earth. The effect being almost like a solar eclipse that happens daily (...
Yesterday while Green, Andy and I were recording new episodes for the podcast we stumbled upon a bit of a problem that we need someone with physics/astronomy knowledge to help out with. We want to...
I'm writing a scene set on a construction site where the builders notice that the cement they pour is not setting: it just remains in its liquid state or it is taking a very long time to set. This ...
Let's assume the planet has only one half the mass of the moon and is covered by shallow ocean. To eliminate water pressure at extreme depths, assume the ocean is also quite shallow, with a maximum...
So, my climates are extreme due to a 31.1 degree axial tilt. The maps provided show a climate classification system based on prevailing winds and elevation. Based on Reddit user u/shagomir's Plane...
It's a few years from now, and an incredible breakthrough in medical science has occurred that allows doing an in-depth 3D analysis of a deceased person's body, allowing their brains and bodies to ...
Writing about Fairies, the one thing I can't pin down is there reproductive cycle. My Fairies will be actual little mammals. Not just elementals who are born out of nature. I want them to have sim...
Is there a habitability zone between the primary and secondary stars in a binary star system for a planet orbiting only the primary star at a distance less than that of the secondary star and, if s...
Suppose that there was a tribe of nomadic mermaids whose lives were primarily centered around following pods of dolphins to eat. They live in the equivalent of the frigid antarctic seas. As they ...
I have been told that the high proportion of O2 and CH4 in my atmosphere are unsustainable unless constantly refreshed by an active process. I would like to sustain the following atmospheric compo...
My planet Mass = 0.602 MEarth Radius = 0.870 REarth Density = 5.04 g/cm3 vesc = 9.3 km/s Temperature = 272 K My atmosphere 74.84% N2 22.04% O2 1.38% CH4 1.25% Ar 0.27% H2O 0.11% CO2 Mo...
First, specifying format in this question I will be giving temperature ranges that sometimes appear backwards. This is because I am listing average temperature ranges from southern to northern lat...
Is there anything that could change the colors of the clouds while still maintaining the sky blue? Or any other color for the clouds, except blue. You can use our solar system as a basis for this. ...
My planet Jasmi is 0.602 MEarth and, according to the wonderful u/shagomir's Planet Calculator Pro spreadsheet, I need to retain enough gas for just over 5 atm of pressure at sea level for a suitab...
In my story, all the fauna in the planet (basically Earth) has been instantly killed, leaving only flora and fungi. How long will it take before the effects start to show, and how long until all th...
