Posts tagged planets
I'm asking for a world I'm making, which orbits a red star. According to this image, there is a star that would make the sky white. What would the sky look like during sunrise and sunset on a p...
Say that you have a cuboid "planet" that can retain its shape. Can it have a cubical iron core (as opposed to the spherical one described in this question) and generate a magnetic field? Would the ...
Assume there are three earth-like worlds in our solar system. These three worlds would also have a single natural satellite roughly at the same mass-distance ratio of Earth to the Moon (about 1.2 p...
Which body in the Solar System is the best candidate for being an artificial construct, placed there by a Kardashev Type II Civilization? Some notes: The purpose of this body is to monitor eart...
I'm currently writing a narrative and hoping to include a world which is home to a sea of some form of 'nasty' substance (doesn't have to be acid). The varieties of inhabitants of this world have ...
I just got shoved through a stargate onto a planet I don't know. I was told the gate would open again in exactly one Earth year. I wasn't carrying anything; I don't even have my watch. How do I k...
I am trying to figure out the climate on my planet. If there is an asteroid ring around the equator will it cool down the equator? And if it does cool down will the planet still be habitable? My ...
Picture a planet identical to Earth, but with rings. It has a satellite similar to the moon, except smaller; I'm not sure how big it needs to be but distance from the planet is more important so ...
Suppose there was a ternary system where the stars are effectively identical in mass, luminosity, radius, etc. These three stars circle a central point rather than two orbiting a larger third. At t...
Pretty self explanatory question...can the Cube Earth described at the link below support a spherical core and a magnetic field? How would a civilization that has been living on a "cube" Earth di...
I am making a game folowing the development of civilizations on an alien planet, however as i am almost done with the geography of this planet, i have come to realize that my continents which are s...
I'm (slowly) working on a semi sci-fi world, set in a WWII-ish tech level (Semi sci-fi being how they got to this world). Except in this world, aircraft have developed significantly later, and batt...
I'm writing a book about a man traveling on a Desert planet (colonized) and I need help with some of the species he might encounter there. I'm focusing on animals right now. I need to know what ada...
I am trying to create a planet for a fantasy role-playing game where the equator is an impassible region of ice. Ideally, I want to find a science-based solution to this and not have to resort to ...
Would a species which developed on a world with no atmosphere (i.e. the moon) survive on a planet with an atmosphere, such as Earth?
If the Earth was destroyed by a cataclysmic event such as a large mass colliding with it, such that it fractured into multiple pieces, would any trace of human civilisation remain intact ? I.e., i...
I've had a look around the internet and the only real classification system for planets seems to be the one from Star Trek, which I don't want to use. The real groups that planets fall under seem t...
Imagine the Earth is sucked into a wormhole powerful enough to pull it out of it's current orbit. the ones who created the wormhole wanted to move earth to protect it however didn't want their acti...
What would be the effects of an Earth-like planet with a longer year and longer lunar orbit? I have a planet with 432 days in a year and a lunar cycle of 36 days, with 12 months at 36 days each. Th...
I'm coming up with a science fiction world for an assignment. Would it be possible for a planet like Earth to be eaten by a giant alien creature that moves through space at a relatively slow speed...
There is a terrestrial planet called Paveiha that orbits a small Red Dwarf star. It is the third planet in a system of 10 planets. Paveiha is close enough to the Sun that it is tidally locked and t...
Could an artificial planet be created considering there is a perfect void, the core is a super-magnet(an artificial planet core made of magnetic metal) that is coated with earth as is our planet an...
What conditions are believable for a racial society majority to accept a racial minority, and those to reject them? I have two races. One is a racially pure majority and the other is a mixed breed...
I'm effectively looking to change the 'Could' in this question to a 'what' or 'How'. Could higher land-based life exist on a planet with a pressure of about 1 MPa? I'm working on a story in which...
Once the geography of the world is designed, it needs a planetary system to inhabit. But how should that solar system look? The only constraint is that the system needs the new world to be placed i...
I'm looking for something that would prevent humans being able to establish the use of satellites on an alien planet, but also would not prevent humans from living on the planet, or life developing...
So I'm looking to add rings to a planet, but I'd like it to appear to be an atom (like a 3-D model with the electron trails) using the dust and debris from collisions long past. My idea is to wea...
I have left a link to the NASA video in case you are not to sure what I am referring to or to get a better picture of what I am talking about. https://www.youtube.com/watch?v=bnKFaAS30X8 With th...
The planet I'm working with has two different moons, both around the same size (3/4ths that of the main planet). Is it possible for the planet to support the orbit of these moons, especially with t...
I'll be honest here; I don't know much about the physics of planets and planetary systems, etc. However, I've been looking into ellipsoidal moons, and most of what I've found is about Nix, one of P...
If Mars is thought to have once been like Earth several billion years ago, with an atmosphere, magnetic field, oceans, etc., then what would the planets true surface gravitational acceleration "m/s...
Several science fiction books picture bigger Terran planets with higher gravity. I'm curious to know what would be the maximum gravity mammals similar to the one on earth could survive. Only bones ...
If two planetary bodies were tidally locked to each other (e.g. pluto and charon) then could there ever be a situation where the smaller of the two bodies had the 'heavier' gravity? Could you ever ...
I wonder whether it is impossible. How can I be launched into space without using a rocket? If the planet has some super volcanoes, can a volcanic eruption be used to launch a vehicle into space? H...
Earth and Titan prove that ocean be made of water and liquid methane, respectively. Theoretical planets with oceans of liquid ammonia and sulfuric acid are believed to exist. But what about alcohol?
In the story I'm writing, a gas dwarf (named Eden) is discovered in a triple star system. Its atmosphere is mainly oxygen and water based, and its gravity is slightly higher than Earth's. Unlike o...
Background: Interest in the red planet is re-surging. For example, Elon Musk has said he will lay out a detailed plan for Mars colonization this September. Question: Assuming the next step in spa...
Earth is setting up mining colonies on Tau Ceti e. But how can they justify the enormous cost of sending people there? ...Because during the initial exploratory missions, it was discovered that in ...
In the mobile game "The Path To Luma", the main hero travels to very tiny planets. Let's not think about where is the sun and how we leap through such small planets. What I want to ask is, if there...
The world will going to be the homeworld of an hairless feline humanoid race, but I want to see the plausibility of this scenario?
What I am proposing is a bridge making it possible to travel between two planets, I have some ideas but I would like to know if and how it would work. Maybe somehow stopping their orbit and locking...
I am writing a science fiction story that would greatly benefit from a plot device that causes a large localized darkness effect. I'm aiming to get at least 3 days of darkness that covers a signifi...
This question may be a bit broad, but I'm basically wondering what minimal things humans need to have in an atmosphere in order to survive. Let's assume we have Earthlike gravity, and are only deal...
EDIT: I eventually managed to find the absorption spectra of SO2 online - it absorbs in the ultraviolet range only, not in the visible light range, so the only factor affecting light transmitting t...
In a world I am building, the planet's days are longer than its years, with a single day taking 9 years. In all other ways, this planet is similar to Earth, but are there other differences I am mis...
I'm currently creating a world with a population of about 4.5 billion people and 21st century technology. In fact, the world is strikingly similar to ours. Oh, except the islands that is. The en...
I'm working on a sci-fi/fantasy story that involves a future earth that has become tidal locked with the sun. Part of the story has an advanced civilization that has built a ring (halo) that circle...
My theory is that if a moon's orbit is situated in between the exoplanet and a second satellite, tidal heating could occur and turn the moon into a sustainable heat source for the host planet. Coul...
This is the link of what I have in mind, https://www.youtube.com/watch?v=jKvnn1r-9Iw , can a planet rotate chaotically through this system and still be habitable? If it's going to collapse after a ...
A large, visible set of rings is the most conspicuous element that sets Saturn apart from the other planets. The whole system is 175,000 miles (280,000 km) wide but only two-thirds of a mile thi...
