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Rigorous Science

Posts tagged planets

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Rigorous Science Could a habitable planet lit by the cosmic microwave background plausibly exist?

I've got this idea of a rogue planet that is moving that fast through the intergalactic void that the cosmic microwave radiation, thanks to the Doppler effect, actually provides enough heat that it...

1 answer  ·  posted 1y ago by celtschk‭  ·  last activity 1y ago by dsr‭

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Rigorous Science Are geographically typed planets realistic?

In many science fictions we see planets which are designated by a particular terrain type. For example, Dagobah is a swamp planet, Tatooine is a desert planet, and Kamino is an ocean world. Howeve...

5 answers  ·  posted 8y ago by Liath‭  ·  last activity 2y ago by Canina‭

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Rigorous Science Asteroid flux or: How to make a planet perfect for mining

One of the cool things about the Moon is that the far side has a thicker crust that the near side.1 One theory explaining this is that the Moon was hit by an object, possibly a moonlet created by t...

1 answer  ·  posted 7y ago by HDE 226868‭  ·  last activity 2y ago by Canina‭

Question planets mines
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Rigorous Science How do seasons work in a binary system (planet orbits one star, not both)?

I have a planet orbiting one star in a binary system. When the planet is exactly between the two stars it will experience a double day; when the primary sun sets the secondary one rises, no overla...

5 answers  ·  posted 7y ago by Monica Cellio‭  ·  edited 2y ago by Monica Cellio‭

Question planets stars light
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Rigorous Science How much does my secondary star heat the planet orbiting my primary star?

In this question I asked about the lighting patterns from this system: A really helpful answer there explained when the planet is getting how much illumination. This question is about heat. On ea...

3 answers  ·  posted 7y ago by Monica Cellio‭  ·  edited 2y ago by Monica Cellio‭

Question planets stars
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Rigorous Science Inverse orbital direction

Is it possible that a planet/moon will have inverse direction comparing to the rest orbiting material? For example Mars would go in counter direction comparing to other planets in solar system. I...

2 answers  ·  posted 3y ago by Zavael‭  ·  last activity 2y ago by HDE 226868‭

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Rigorous Science Do seasons occur on a tidally-locked planet?

I have done some research and so much contradict one another or I simply fail to understand. Do seasons occur on a tidally locked planet that isn't tilted on its axis?

4 answers  ·  posted 2y ago by Mister Onion‭  ·  last activity 2y ago by HDE 226868‭

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Rigorous Science How do I calculate the loss of primordial heat for a given age and mass of a planet?

I'm working on a computer program which generates realistic planets for worldbuilding purposes. I've run into an issue with calculating my planets heat loss. While radiogenic and tidal heat generat...

3 answers  ·  posted 3y ago by TheDyingOfLight‭  ·  edited 2y ago by HDE 226868‭

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Rigorous Science What could cause Earth to drift out of orbit over a period of months to years?

I would like to have Earth slowly move away from the sun, taking somewhere between several months and a couple of years to reach the point where human life on the surface is no longer possible. (T...

6 answers  ·  posted 8y ago by Monica Cellio‭  ·  edited 2y ago by Canina‭

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Rigorous Science How to Calculate Apparent Magnitude/Brightness of Planets from Within the same Solar System

I'd like to be able to determine the appearance of the night sky from an Earth-like planet, in a solar system with multiple other planets, moons, and other bodies. Here on Earth, we can directly me...

0 answers  ·  posted 2y ago by A.E. Stephenson‭  ·  last activity 2y ago by A.E. Stephenson‭

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Rigorous Science How large would be the habitable area in a tidally locked planet?

The planet is identical to Earth except for one twist. It is not axially rotated but has an elliptical orbit, causing longer, planetwide winters. I would just like to ask what the width of the hab...

2 answers  ·  posted 2y ago by Mister Onion‭  ·  last activity 2y ago by Mister Onion‭

Question planets
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Rigorous Science Are these traits for my planet mathematically accurate? Could it support life?

Mass of star: 0.75 M☉ Radius of star: 0.69 R☉ Surface temperature of star: 4,620° K Luminosity of star: 0.2 L☉ Satellites: 2 Place in solar system: 2nd Mean radius: 8,725.1 km Mass: 2...

2 answers  ·  posted 2y ago by Praearcturus‭  ·  last activity 2y ago by Praearcturus‭

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Rigorous Science Earth-sized Moon with Host Planet launched from Star System

Could a planet with the size and characteristics of the Earth orbit a gas giant and would the earth-like moon be able to maintain its orbit if the gas giant went rogue and was launched from its hos...

4 answers  ·  posted 2y ago by user76027‭  ·  last activity 2y ago by user76027‭

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Rigorous Science Properties of an Argon based gas giant

I am writing a novel where a habitable moon orbits a purple gas giant. In looking here and elsewhere I'm finding it incredibly hard to get a sense of the elements-breakdown of elements that would b...

1 answer  ·  posted 2y ago by RMurphy-Keith‭  ·  last activity 2y ago by RMurphy-Keith‭

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Rigorous Science How far above the galactic plane could an Earth-like planet develop?

I was zooming around on Space Engine and came across the moon of a gas giant that was hovering well above the galactic plane. I'm admittedly not well-versed in under what conditions an Earth-like p...

1 answer  ·  posted 2y ago by Vigilant‭  ·  last activity 2y ago by Vigilant‭

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Rigorous Science How large and compact could a cold east Mongolia-like steppe be on an Earth-sized planet?

Welcome to planet X! Planet X is the same as Earth in radius, composition, axial tilt and orbits star Y (identical to the Sun). Planet X has a moon known as moon Z (identical to Earth's moon). Cou...

1 answer  ·  posted 2y ago by galactic_analyzer‭  ·  last activity 2y ago by galactic_analyzer‭

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Rigorous Science Would a civilization living on a planet without a moon still come up with the concept of months?

We divide the year into months of ~30 days because that's roughly the period of the moon, adapted to fit a solar year. However, would a civilization living on a world with no moon but a year of ~3...

6 answers  ·  posted 2y ago by galactic_analyzer‭  ·  last activity 2y ago by galactic_analyzer‭

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Rigorous Science How Would I Make an Oceanless World Feasible?

The planet I'm thinking of is of similar size and distance from its star relative to Earth, but it lacks oceans, instead consisting of one massive continent with a huge mountain range (reminiscent ...

8 answers  ·  posted 2y ago by The Weasel Sagas‭  ·  last activity 2y ago by The Weasel Sagas‭

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Rigorous Science How can a rogue planet get energy for plants to use?

This rogue planet is a cold rocky world where liquid methane replaces water, hydrogen is used in place of oxygen, and a large moon. I was thinking the large moon would have a large tidal pull that...

8 answers  ·  posted 2y ago by Chickenpeep Chickenpeep‭  ·  last activity 2y ago by Chickenpeep Chickenpeep‭

Question planets flora energy
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Rigorous Science Is there a plausible way to have a Gas Giant with two or more earth to mars sized moons orbiting it in the Habitable zone?

A hypothetical scenario I'm batting around in my head is a Habitable Gas Giant system consisting of a roughly Saturn sized body orbiting a sun like star at a comfy goldilocks zone distance. Orbitin...

2 answers  ·  posted 2y ago by Khwarezm‭  ·  last activity 2y ago by Khwarezm‭

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Rigorous Science Greenhouse Effect Strength- Ammonia World

I've been working on designing how an ammonia-ocean world might work and I've settled basically everything except one. I cannot for the life of me find any sources that actually provide a decent wa...

1 answer  ·  posted 2y ago by Sam D. Jones‭  ·  last activity 2y ago by Sam D. Jones‭

Question planets chemistry
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Rigorous Science Putting together a research expedition to an alien planet - what kind of scientists am I taking with me?

It's the 22nd century and we have discovered a derelict alien craft somewhere in the Oort cloud. The craft contains a star chart showing its origin on an alien planet some 30 light years away. Let'...

4 answers  ·  posted 2y ago by Faz‭  ·  last activity 2y ago by Faz‭

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Rigorous Science When earth is filled to the brim with plant-life, can it cause a hyperoxic environment?

Say humans found a way to exponentially increase the capability of plants to grow. Is it possible for it to cause an environment that can cause oxygen toxicity in humans?

3 answers  ·  posted 2y ago by chaeltom‭  ·  last activity 2y ago by chaeltom‭

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Rigorous Science Temperatures on an Earth with a week-long rotational period

To make things simple, assume Earth had a slower rotation than it does. How would that affect daily highs and lows in temperature? Is there a simple way to figure it out? Was thinking a week-long r...

2 answers  ·  posted 2y ago by Ryan Williamson‭  ·  last activity 2y ago by Ryan Williamson‭

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Rigorous Science Would it make sense to send potential human colonists on the initial manned expedition to a habitable, Earth-like planet?

In the near future, humanity has spread out across the Solar System. A new planet is discovered, let's say 30 light years away, that shows it to be Earth-like and could harbor Earth life without to...

5 answers  ·  posted 2y ago by Space_Cadet‭  ·  last activity 2y ago by Space_Cadet‭

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Rigorous Science I want ten Earth-years long day on my planet. Can I have it?

I need ten Earth years long day-night cycle on my planet. Hemera is a world I am creating as a setting for my story. Name comes from Greek deity - personification of Day. Needs of storytelling hav...

6 answers  ·  posted 2y ago by Zjerzy‭  ·  last activity 2y ago by Zjerzy‭

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Rigorous Science Is my planet realistic?

Is my planet realistic? It doesn't need to be able to support life as it's just another planet in my solar system, but is a planet with such a high density and gravity really possible? I calculated...

4 answers  ·  posted 2y ago by LonelyCryptid‭  ·  last activity 2y ago by LonelyCryptid‭

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Rigorous Science What is the tallest mountain possible in any gravitational environment?

In world building it is often interesting to consider extreme landscapes "“ how tall can a mountain be on Earth for example. But what is the tallest mountain possible in any gravitational environme...

2 answers  ·  posted 2y ago by Slarty‭  ·  last activity 2y ago by Slarty‭

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Rigorous Science Binary Star System Build - Alpha Centauri

I'm not sure if this site or Astronomy would be better, but I figured I would try here instead. I am attempting to create a [semi]plausible star system in Alpha Centauri for a series. The system w...

1 answer  ·  posted 2y ago by user72655‭  ·  last activity 2y ago by user72655‭

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Rigorous Science Is it possible for a planet to only support liquid water at the poles?

Could a planet be hot enough that oceans could form at the poles, but would boil at the equator? And would oceans form at all on this planet?

2 answers  ·  posted 2y ago by Ichthys King‭  ·  last activity 2y ago by Ichthys King‭

Question planets ocean
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Rigorous Science Could habitable planets form in an ultracompact galaxy?

I am wondering if habitable planets could form around stars in super dense dwarf galaxies. There are some super dense galaxies such as M60-UCD1 and M85-HCC1 which can have a typical distance betwee...

2 answers  ·  posted 2y ago by RandySavage‭  ·  last activity 2y ago by RandySavage‭

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Rigorous Science Would a life-bearing Earth-like world with 3g average gravity produce more or fewer flying creatures than Earth?

On one hand, heavier gravity would make flying more difficult, owing to greater weight restrictions on the flying creatures' bodies. On the other hand, the greater density of the atmosphere on ...

2 answers  ·  posted 2y ago by James Grossmann‭  ·  last activity 2y ago by James Grossmann‭

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Rigorous Science Distance from Jupiter to minimize destructive tidal forces

There is a video from "What If" that tells about (precisely) "What if Earth was a moon of Jupiter":What if the Earth Was a Moon of Jupiter And, in a short story I am writing in an alternate realit...

2 answers  ·  posted 2y ago by Carlos Zamora‭  ·  last activity 2y ago by Carlos Zamora‭

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Rigorous Science Can a perpetually darkening atmosphere exist and yet still allow life to evolve?

I am creating a science fiction worldbuilding project, in which humanity has colonised distant exoplanets. One such planet is a Venus-like planet in the sense that it has a perpetual cloud cover, a...

3 answers  ·  posted 2y ago by QUESTER42‭  ·  last activity 2y ago by QUESTER42‭

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Rigorous Science How did aliens on a habitable planet hide themselves during the recon and scouting stage by human colonists?

We've found a habitable planet orbiting a red dwarf star some light years away and conditions are Earth-like enough that a colonization project was initiated. Before any humans landed on the planet...

12 answers  ·  posted 2y ago by Faz‭  ·  last activity 2y ago by Faz‭

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Rigorous Science Planet with double the orbital period of Earth

I need a planetary system for my novel where an Earth-like warm habitable planet has an orbital period of about 650 to 730 days. I know that is similar to Mars and that Mars would be too cold. What...

4 answers  ·  posted 2y ago by Julianne‭  ·  last activity 2y ago by Julianne‭

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Rigorous Science Is it possible for a planet to have an area saturated with lava but at the same time is still habitable to humans and other lifeforms?

An area of my planet is very saturated with lava. Being quite similar to the Siberian Lava Traps, it is essentially a lava sea. This lava "sea" area isn't necessarily all lava however, as there are...

2 answers  ·  posted 2y ago by In the name of the story‭  ·  last activity 2y ago by In the name of the story‭

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Rigorous Science I'm formulating a planet that has silver dust on its surface, and ideally has rivers of mercury flowing on it, possible? Human survival not necessary

I'm new to this and my scientific knowledge is massively lacking in this area (so please take it easy on me!) I'm writing a historical science-fiction novel. Parts of it set in the past (1977) and ...

3 answers  ·  posted 2y ago by RJ0001‭  ·  last activity 2y ago by RJ0001‭

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Rigorous Science Giant planet renders one side of its moon deadly, the 'shadow side' habitable. How?

My project concerns a world "A", that is a moon of a gas giant "Jovi", in a solar system with no other planets to speak of and a host star much like our own. "A" is Earth-sized, has no magnetic fi...

3 answers  ·  posted 2y ago by N. Bleac‭  ·  last activity 2y ago by N. Bleac‭

Question planets radiation
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Rigorous Science How Would I Believably Wipe Out an Entire Planet's Population and Culture Without Destroying Said Planet?

In my story, there is a planet. The planet's name is not really important for the sake of this question, so we're going to refer to it as "dead planet". Background: Dead planet is entirely hot d...

5 answers  ·  posted 2y ago by The Weasel Sagas‭  ·  last activity 2y ago by The Weasel Sagas‭

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Rigorous Science Plausible reasons for a whole planet to have a temperate oceanic climate?

In my book series, I'm worldbuilding a planet whose culture is based on Celtic mythology and history, and in order to be consistent with real life I feel like the whole planet's environment needs t...

2 answers  ·  posted 2y ago by The Weasel Sagas‭  ·  last activity 2y ago by The Weasel Sagas‭

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Rigorous Science Would these processes be probable on this planet?

Background This planet, located somewhere in the Andromeda galaxy, orbits a M5V star about 0.682764 AU away from its star. The planet is volcanically active due to the gravitational field of the ...

3 answers  ·  posted 2y ago by Covision‭  ·  last activity 2y ago by Covision‭

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Rigorous Science Consequences of hitting a Pluto-like planet with a highly luminiferous meteorite?

While the intended end state is that this planet can support space-faring lifeforms, the solution under question needs a sanity check. I cannot commit to many numbers with how speculative this all ...

1 answer  ·  posted 2y ago by CAE Jones‭  ·  last activity 2y ago by CAE Jones‭

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Rigorous Science Are Geologically Dead Planets Habitable?

One of the planets I'm thinking of for my book series has all of its landmass in the northernmost half of the northern hemisphere (it is thus mostly a water world) and is completely geologically de...

9 answers  ·  posted 3y ago by The Weasel Sagas‭  ·  last activity 2y ago by The Weasel Sagas‭

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Rigorous Science How massive would a planet need to be to sustain negligible damage from impact with the Earth?

I'm curious what factors a terrestrial planet impacting the Earth would require for the impact to cause negligible damage to the larger planet, while destroying the Earth.

6 answers  ·  posted 2y ago by Wax‭  ·  last activity 2y ago by Wax‭

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Rigorous Science What are planetary side effects of having a thicker atmosphere?

I've been told that having a thicker atmosphere would make it easier to fly, particularly of heavier-than-air designs, so I'm interested in giving my planet such conditions. I'm mainly interested t...

1 answer  ·  posted 2y ago by Vigilant‭  ·  last activity 2y ago by Vigilant‭

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Rigorous Science What kind of climates and biomes would exist on the continents a tidally locked ocean world?

Please note: I am asking about planet orbiting a star, not a moon orbiting a planet. So I've been trying to get this planet down for a long while now but there are still so many pieces of the puzz...

2 answers  ·  posted 2y ago by SentiCarter‭  ·  last activity 2y ago by SentiCarter‭

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Rigorous Science What are some ways to hide a planet?

A major plot point for my story is the Protagonist stumbling upon a planet that was purposely hidden from the rest of the galaxy (at the edge of the galaxy) as it's being used by high level governm...

11 answers  ·  posted 2y ago by Primordial‭  ·  last activity 2y ago by Primordial‭

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Rigorous Science Colonies on Jupiter

I'm making a series where a multi-purpose frigate travels to Jupiter in order to help in the Mars versus Jupiter war. However, I don't know what the colonies would look like. Maybe floating wit...

4 answers  ·  posted 2y ago by CatSharkSnake‭  ·  last activity 2y ago by CatSharkSnake‭

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Rigorous Science How can early people prove that their planet is a cuboid?

Imagine a cuboid planet with a thick atmosphere orbiting a star similar to our Sun. The inhabitants are as intelligent as humans and recently discovered the universal laws of gravitation and motion...

4 answers  ·  posted 2y ago by user6760‭  ·  last activity 2y ago by user6760‭