Posts tagged planets
"Every cloud has a silver lining." The saying is fairly well-known, but I was musing on it while staring through a cloud bank, and I started to wonder: What kind of hellhole would a planet have to ...
I want to play with the idea of a sapient species evolving on a world where at least part of the world experiences a permanent day. The obvious way to doing this would be where part of the world f...
Could a high powered telescope in space (such as the Hubble Telescope) be capable of peering through a large worm hole with enough clarity to detect that a planet is somewhere on the other side? I...
Scenario: A generation ship travels to a star system that has at least one planet that's believed to be potentially habitable and, therefore, a possible location for a colony. After sending some p...
Preamble The Alternity Cosmos II is a complement to a dice role-playing game that uses heuristics based on hard-science to 'build' plausible star systems for the Alternity game: http://www.altern...
A short time ago I read that life might be possible on interstellar planets (i.e. planet-like objects which aren't bound to a star by gravity.) They may be insanely cold on the surface but inside t...
My premise involves a habitable planet with a dual core: it has two masses similar in composition to Earth's core, which revolve around each other over the course of hundreds of thousands of years...
Can life exist on planets as barren as Mercury? How would it survive? It seems like it couldn't. Mercury is very hot, would any life break down becuase of the heat? What other challenges face life ...
I have a mars-sized "planet" orbiting a superearth-sized mother-planet. There is also another satellite with an abnormal elliptic orbit, but it is of minor concern for now. This is the resume of ...
It appears that multiple planets existing in the same orbit is theoretically possible. In that case, how would we go about building a second Earth-sized planet and inserting it into some position i...
Welcome to Smooth World. Most of this planet (at least two thirds, but preferably more) has only tiny differences in elevation, 30-40cm at most. No hills, no mountains, no valleys. Even plains fou...
So, like my question says, I've been wondering if a rocky planet, that looks much like our planet from the surface (oceans, forests, mountains, ext) could be possible. I've read through a good nu...
In the 22nd century C.E. human already colonised the entire Solar system, and Earth becomes a dangerous place to live because of the spread of deadly synthetic virus that kills every animals and sc...
This is a spin off from this question here. I want a spaceship or several spaceships to be able to move a planet out of its orbit around another planet. How big could the planet realistically be...
I want to have two planets orbiting each other, and there is a ring around both of them, is this possible? I know rings are formed inside the Roche limit, so if the ring lies outside the planets, ...
I've created a new question and worded differently to help me get the answer I want. Click here to view A planet is in orbit around a larger planet, and I want to push it out of orbit. The plane...
Given advanced enough telescopic technology, would it be possible to detect that a planet in the order of 50 light years away is inhabitable? (i.e. without having to actually go there) I'm just lo...
The scenario is the following: a civilization with technology level similar to humanity's current, on a planet similar to Earth, shall be hit by a massive celestial body in approximately one year. ...
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...
Lore: "Not much is known about the past of Unus Solum. What is known is scattered and fractured. Unus Solum was a planet that was subject to colonization efforts. The Ark ships that came were pre...
Humans require a 20 degrees environment. that's 250 degrees warmer than Pluto. So, if humans lived there, their structures would melt the surface and sink. −200 cracks all common metals. most sp...
Would it be possible to recreate planet Earth and it's ecosystem on a desolate planet that has with similar basic properties? This planet has a similar temperature range to Earth, has no soil, onl...
I've seen many iterations of this question, though they've focused on the effects entailed. Let's pretend the earth has been ripped in half, as if some colossal force grabbed the northern and sout...
In many stories, there is the idea about "planet essence" or something that: Can be extracted from the planet. Very useful for human industry once extracted. Has large reserve, but not very lar...
Would it be easier to build Skyscrapers on a planet with 50% of Earth's gravity, and the same atmospheric pressure of the Earth. I noticed someone asked why the planet has lower gravity, this is be...
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...
Some information about their homeworld: Their homeworld, 0.34247 (M⊕) 0.54 G, 10156 km. The atmospheric pressure of their homeworld is 62% of the Earth's, and the planet has an average temper...
Setting A binary planet system consisting of two terrestrial planets (hereafter Alpha/α and Beta/β). The system barycentre (C) is between the two planets; for the sake of this question the exact...
I was trying to put together an idea for a Gas Giant like planet that could possibly support some kind of fairly complex life, and I hit upon a few ideas: -Located in a habitable zone roughly simi...
This is an answer I found while looking up random factoids. And it's gotten me wondering. ((If I should take down the picture, and just paraphrase the text, please let me know.)) Charlie here i...
So having read a couple of other questions on here, and postulating over this for a while, here's my question. Is it possible to have two magnetars in a distant binary orbit, with an earthlike pla...
In a setting I am presently working on, I have envisioned a world similar to Star Wars' Takodana, in that its water is mainly in the form of large rivers, or smaller seas (I generally picture it b...
I'll keep it nice and simple. On a world that does not rotate is it possible to have a mountain that is high enough that when you sit at the top, you can see the divide between daylight and night t...
Earlier today I came across this question, asking as to the effects of having a planet with a shell around it acting as a planet itself, so there was a planet within a planet with neither in contac...
The errant planet is similar in size with the star and it's made all of water. Usually is icy, but probably gonna melt when approach the star. What happens during the process of collision between ...
I was wondering what would happen if there was a planet with a "shell" of stone entirely surrounding it (not connected, just held in place by gravity), with a few holes all the way through the oute...
So for my story I want to have a binary planetary system, where both planets are about the size of earth and are habitable by human people. I'm also thinking that they will be tidally locked to eac...
What would happen to to a planet 10 times the size of Jupiter, if there was a black hole the size of a golf ball in the core of the planet? Would the planet be eaten by the black hole? Or would t...
My question is pretty simple, all the details about the planet are pictured below.
I have a habitable moon orbiting a gas giant. The moon is not tidally locked with the gas giant. The orbital plane of the moon around the gas giant is the same as the orbital plane of the gas giant...
I Was playing space engine and i was looking for a planet like Earth for quite some time and then i stumbled on this beautiful world covered with liquid water which orbited a main sequence star wit...
Some details about the planet and its moon plus the host star. Star: 0.85 Sol, 0.54% of the Sun's luminosity Planet: 0.04926 (M⊕) 4836 km, 0.34 G, Orbits the host star at 0.901 AU. The atmosph...
I'm wondering what natural phenomenon would allow a planet to have a part of its surface always under daylight, a part of its surface never seeing said light, and a third part where day and night c...
I have already taken into concern renewable sources and several other factors. Ventilation Oxygen easily gets into this underground system via diffusion and likewise CO2 easily goes out. Plants a...
In theory I believe that if you moved far enough above the surface of the pole you should be able to reach an area where you have constant sunlight, even in the middle of winter. My question is - ...
I was wondering if three planets can rotate around each other so that: Two of the planets are smaller and rotate around each other Both of the smaller planets rotate around another, bigger plan...
Could a planet have an orbit in the shape of a figure 8 around twin (possibly binary) stars? Mostly curious about the physical possibility of such an orbital arrangement; is it stable over a long ...
I'm piecing together a short graphic story about the last few thousand "people" on a small rocky planet that has partially survived the destruction of it's solar system. I wanted to explore the sci...
I wonder if there is a stable star-moon-planet system where a specific area of the planet would be permanently covered by shadow. I'm not looking for a common tidally locked planet with a roughly 5...
By Mars sized I mean with masses between 0.10 (M⊕) and 0.25 (M⊕), the planets need to have independent orbits around the star. We can assume the habitable zone stretches from 0.70 AU, to 1.5 A...
