Posts tagged earth-like
Would it be realistic for a (relatively) small island nation to have these features: A Forest A lake A snowy mountaintop A desert A bustling modern city How large would this island have to be i...
How would it be possible to have a planet with two defining surface features, ocean and mountains? Such a planet would have to be habitable for humans who arrive there, though it does not need to s...
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...
If we were to pull the following races out of a D&D players handbook and remove them from the setting/history of Faerun and look at them from a biological/non-magic perspective (no other planes...
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...
Worldbuilder in dire need! I'm trying to figure out the eclipse length of a habitable Earth-like moon that is rotating around a gas giant. The story that I work on is centered on the Earth-like mo...
Is it possible for an earth analog planet* to have more than 3 convection cells per hemisphere? In our system we only have Jupiter and Saturn with 20 atmospheric bands, even Uranus and Neptune hav...
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...
The idea is that a species very similar, but not related to humans have evolved on a different planet and are living in a medieval society. Humans from Earth must be able to live on this planet wit...
The setting is Earth with the ordinary moon moving as per usual, but this planet also has a moon with stronger tidal pull that moves in an elliptical orbit and comes to its closest point to Earth e...
It has become accepted knowledge that the planet Earth was birthed via a swirling cloud of dust and gravel clumping into larger and larger pieces of rock. It began 4.54 billion years ago, and 100 ...
On my fictional planet humanoid aliens have evolved on one continent, and have since spread around the entire planet, just like humans did on Earth. On Earth humans have since developed slightly di...
Is there any way to explain how did humans in my planet end up with extreme dimorphism without resorting to polygyny nor "magic"? I want men to be around 6ft (183cm) - 230 lb (105kg), while women ...
Is there a limit in physics/chemistry I need to change by inventing Unobtainium? Or is it just a matter of economy by making regular fuel much harder to extract, and chemical explosives much common...
Entropy in a casual definition is the tendency of things to progress from order to disorder. There are a variety of specific definitions in different arenas of thought. For example, heat will diffu...
I'm exploring various kinds of potentially habitable planets as part of a universe-building exercise, and have recently delved into the fascinating concept of carbon-rich planets. My question is mu...
To elaborate on the title, can alien plant life on an Earth-like planet look similar to ours, or would plants on an alien planet be radically different, unrecognizable, or incomparable to Earth pla...
Take the earth-moon system. Shift the moon's orbital plane about 90 degrees so that it is passes over both poles. What would the tides on this world look like? Sub-questions: What would the cy...
For story reasons, I'd like one planet habitable, plausible, but in some noticeable way older than Earth. Just not all planets are 4,5 bilion years. Tidally locked planet that orbit red dwarf, save...
Series Premise Made Short: For reasons that I'm not allowed to describe here (confidentiality), Earth's deciduous and tropical plant life largely dies off. A hardy and oxygen-hungry microbe infests...
I made a map of the tectonic plates for my planet and then assigned each of them a direction. So as the question title says, what geographic features occur at each type of plate boundary? Also to ...
I trying to describe colonization of an Earth Like planet orbiting a red dwarf in its habitable zone. It is NOT tidally locked with the star Similar to Earth though somewhat larger Magnetic field...
I want to have an Earth like planet, but with most of the continents having very little flatland. Thus continents would be covered mostly by hills and mountains. I want the rest of the planet to be...
I am considering whether a pre-Industrial civilisation could carry on for millennia on an Earth-like planet without entering the Industrial Age. Of course, regularly destroying everything with pla...
The conclusion of my question Is it possible to have a planet unsuitable for agriculture? was that the most plausible reason for preventing agriculture from developing (beside nomadic herding) was ...
On an Earthlike planet with one large moon (just like Earth's), I have a large landlocked sea with one narrow exit (like the Black Sea, but much larger, something like six or eight Mediterraneans, ...
Technology: Comparable to early XXIst century, except self-driving vehicles are already available. On a tidally locked planet most of the models that I can found (ex. http://www.meteo.mcgill.ca/~t...
I have planet with twice the radius of Earth, with its core being the same absolute size as Earth's in order to provide magnetosphere, and the rest of the planet made of silicates like Earth's mant...
I have a world idea (and definitely not the only one with such an idea in which the main location is a moon of a gas giant, that has life like on Earth. What are the effects of the presence of the...
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...
My setting is a habitable moon with freestanding water orbiting a gas giant. Originally I thought the gravity of the jovian world would tend to draw water toward the tidal bulge of the moon itsel...
I have an earth like planet where stalkers live. They are: Humanoid about same height, strength & speed as humans Three pairs of eyes placed horizontally (Near UV, Visible, Near IR) Lightspee...
Earth like planet has 3 atm pressure at it sea level. How would it affect its rainfall system? 1) Using internet calculator I got a result that boiling point for water would be 131°C, while freez...
How would just the weather be affected if there was huge mountain range between the Arctic and the mid latitudes of a planet? Roughly 50-60 degrees latitude. A little further south than Earth's Arc...
What colour will planetary rings made up of dust and rock (not ice) appear to be? Would there be a difference looking from space and from the surface? More importantly, how will the rings affect t...
What would happen to an Earth-like planet if its core completely and instantly vanished? Would the planet begin to pull in on itself due to asymmetry and the empty space in the middle, or would it ...
In this context, my world assumes an infinite universe so parallel Earths are possible and probability isn't an issue. My planet has half the gravity of Earth but an atmosphere 12x denser, although...
Positing a high (c. 35%) Oâ‚‚-level on a roughly Earth-equivalent planet (atmosphere about like the early Carboniferous), what types of lifeforms would flourish? Obviously, giant insects could be ...
I wonder if it would be scientifically possible, and what would be the explanation for an Earth-like planet with average surface temperature of 14°C, but a very hot ocean, like 80-90° C, covering...
What if there was an alternate earth where there was no landmass between North America and South America. For clarification, in place of Central America there would be a sunken land bridge at the d...
In an Earth-like world I have long pondered building up, the pre-industrial (roughly colonial) society primarily exists on a single continent, roughly the size of Africa. Another continent has been...
Let's assume this planet has had a normal lifecycle up to this point, becoming an Earth-like world with around the same climates, size, landmass, day/night cycle, and has a single moon of similar s...
I wrote a novel based on a human civilization that lives floating cities and dirigibles on a small, atmosphere-abundant super-Earth with a liquid water core (there's a smaller solid core under that...
First the situation, then the question. Here's the situation: An Earth-like planet had a civilization similar to ours, but when it emitted its first radio signals, a nearby alien observation post ...
What would be the characteristics required to make one region as hot as possible? How hot can it get; Can it be hotter than Dallol? Setting: an earth-like planet with all the same characteristic...
So tomorrow for some unknown reason Earth starts spinning significantly faster. How fast could it spin before life on earth dies. What would be the extinction factor? Super storms, the planet di...
I hope this isn't too broad. I would like an Earth-like planet for November's NaNoWriMo that is just enormous, but plausible. Then I started to get into material composition, proximity to the sta...
Humanoid and Planet I understand that you might think "2 circulatory systems require more oxygen so obviously it is not useful." but I know my Kepler Bb humanoids inside and out from anatomy and p...
I need some help with a couple of the planet building theories I'm playing around with. I've looked up most of this stuff and can follow the physics if given the time (and instructional tutuorial h...
The planet in question is Earth-like in size and composition and orbits a Sun-like star. Its atmosphere is less than 5% Oxygen and plants (lichens, some grass and river vegetation) have started col...
