Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »
Rigorous Science

Posts tagged planets

This tag doesn't have any usage information yet.

This tag doesn't have a detailed wiki yet.

50%
+0 −0
Q&A What color should the snow be in this chlorine world?

This question is in the same context (the same world) proposed by Steven L. Gillett in his book: "World-building". And actually there have been some other questions about this same chlorinated worl...

2 answers  ·  posted 5y ago by Carlos Zamora‭  ·  last activity 5y ago by Carlos Zamora‭

50%
+0 −0
Q&A Is it physically possible for a planet to have seasons of different lengths?

Those of you who have read Game Of Thrones will know that in the GOT world seasons do not have a fixed duration, e.g., a winter might last three times longer than the previous one. I find most int...

20 answers  ·  posted 9y ago by Garoal‭  ·  last activity 5y ago by Garoal‭

50%
+0 −0
Q&A Earth becomes a rogue planet - how long can Iceland hold out?

Inspired by this question and my comment on one of the answers. If the earth were flung out of the solar system, it would rapidly become far too cold for any unprotected life to survive on the s...

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

50%
+0 −0
Q&A If a large space ship crashes on a planet, what could kill passengers without obliterating the ship?

The situation I'm considering is as follows: A large research vessel with a crew of about 100-200 attempts to land on a potentially habitable planet, but something goes wrong during the descent. A...

27 answers  ·  posted 5y ago by Anthony‭  ·  last activity 5y ago by Anthony‭

50%
+0 −0
Q&A How can I launch a projectile to hit something in orbit, using only geological structures and power sources?

As an ancient organism whom currently occupies a large chunk of a planet beneath the surface, I have a pesky issue with an invasive species. These humans have decided to colonize my home, mistaking...

14 answers  ·  posted 5y ago by NBJack‭  ·  last activity 5y ago by NBJack‭

50%
+0 −0
Q&A How can I create a new planet/satellite system that generates tides of 6-8 metres?

I'm creating a new setting for a novel. I'd like to build a world where the interaction between the planet and its satellite/satellites can generate a normal tide excursion around 6/8 metres. Furth...

3 answers  ·  posted 5y ago by Krokhmir‭  ·  last activity 5y ago by Krokhmir‭

50%
+0 −0
Q&A How can I create an enormous crater?

My world has a huge crater (4400 miles in diameter) on a world that's roughly earth equivalent (so a circumference of 25000 miles). The native population doesn't need to know how it was formed but...

6 answers  ·  posted 9y ago by Liath‭  ·  last activity 5y ago by Liath‭

Question planets geography
50%
+0 −0
Rigorous Science A Decoy Planet made of expanded polystyrene. How big can I make it?

Note: This is different from the previous question Building a full-sized Lego Earth - what would it look like at various levels?. In that case it was about making a solid full-size Earth from Lego ...

3 answers  ·  posted 5y ago by chasly from UK‭  ·  last activity 5y ago by chasly from UK‭

Question planets
50%
+0 −0
Q&A How would winds behave on a tidally locked planet?

If an earth-sized planet were tidally locked to a star, and was in the life zone of its star with an earth-like atmosphere, what would its wind patterns be like? The planet would have one hot hemi...

2 answers  ·  posted 9y ago by ckersch‭  ·  last activity 5y ago by ckersch‭

50%
+0 −0
Q&A Can a planet's rings be so thick that someone inside them can't see out?

For a SF story I'm wondering how thick a planet's rings can be? When viewed from the inside, can the ring material be so dense that visibility would only be a couple of meters? What would it take t...

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

Question planets
50%
+0 −0
Q&A Gravity on a hollow non-enclosed world

The normal condition of life in a planet (Earth right now) is that below us is the planet's core, and above us is the sky. Now if there's a hollow planet like above, is that possible? How does ...

7 answers  ·  posted 7y ago by Hariz Rizki‭  ·  last activity 5y ago by Hariz Rizki‭

50%
+0 −0
Q&A A planet with changing gravity?

A planet with changing gravity On earth gravity stays constant (besides negligible fluctuations), but it may be possible to change that. What kind of geology, natural satellite, or other anomaly c...

14 answers  ·  posted 9y ago by newton1212‭  ·  last activity 5y ago by newton1212‭

Question planets gravity
50%
+0 −0
Q&A Need a specific event that wrecks the surface, allows the race to survive in bunkers, and affords an aftermath suitable for them to rebuild

One rule: it cannot be caused by aliens or AI invading the planet. But it is okay if an alien race causes the destruction in any other way. It's an Earth-like planet. I need the effects of the des...

17 answers  ·  posted 5y ago by halp‭  ·  last activity 5y ago by halp‭

50%
+0 −0
Q&A How can Mars have life but still be "The Red Planet"

Building on this question "Discovery of life on Mars" Mars is habitable (40% the mass of Earth, 6.06 m/s² gravity, escape velocity of 7.88 km/s, a satellite big enough to stabilize its axis an...

4 answers  ·  posted 5y ago by MANIAC‭  ·  last activity 5y ago by MANIAC‭

50%
+0 −0
Q&A Life on a gas giant?

I know of the conceptualized "Sinkers", "Floaters" and "Hunters" that Carl Sagan and Edwin Salpeter of Cornell conceived of - as possible life forms that might inhabit a gas giant. At the time they...

3 answers  ·  posted 5y ago by GRF‭  ·  last activity 5y ago by GRF‭

50%
+0 −0
Q&A Spotlight distribution in a hollow earth?

I've been toying with a concept for a hollow/inner Earth universe in which I would like to achieve an even distribution of light. The pickle is that the "sun" of this world operates like a beacon/s...

4 answers  ·  posted 6y ago by C. Waldo‭  ·  last activity 5y ago by C. Waldo‭

50%
+0 −0
Q&A Life on giant planet | Can centrifugal force reduce gravity?

In my world a space civilization is colonizing a massive solid planet. The planet has an extraordinarily fast rotation. The gravity is severe at the poles, making life impossible, but life flouri...

3 answers  ·  posted 5y ago by Vingtoft‭  ·  last activity 5y ago by Vingtoft‭

50%
+0 −0
Q&A The Science behind Miller's Planet

In the movie Interstellar, Miller's planet is an ocean planet orbiting extremely close to a black hole. The ridiculous tidal effects caused by the black hole cause the planet's water to concentrate...

2 answers  ·  posted 6y ago by Rangoon‭  ·  last activity 5y ago by Rangoon‭

50%
+0 −0
Q&A Would it be possible to have three planets merge but still allow some life survive?

In my universe a race of humanoid beings caused 3 planets: Earth a larger rocky planet and another earth sized rocky planet to crash and collide into each other, but still allowed the humanoi...

3 answers  ·  posted 6y ago by BlueTangsRock‭  ·  last activity 5y ago by BlueTangsRock‭

50%
+0 −0
Q&A How critical is it for life that a planet remains within the habitable zone at all times?

Important note: The orbits in the diagram are elliptical. They have low eccentricity so they appear to be off centre circles but they really are ellipses with the star at a focus. The habitable...

5 answers  ·  posted 9y ago by smithkm‭  ·  last activity 5y ago by smithkm‭

Question biology planets
50%
+0 −0
Q&A If the Earth was part of an ultimate solar system, what would the sky look like?

I once show a picture depicticting the idea of an ultimate solar system: Image Copyright Sean Raymond In this solar system there are 8 planetary orbits, each containing 52 equal-mass, evenly-spa...

1 answer  ·  posted 5y ago by ΓΙΑΝΝΗΣ ΜΙΧΑΗΛΙΔΗΣ‭  ·  last activity 5y ago by ΓΙΑΝΝΗΣ ΜΙΧΑΗΛΙΔΗΣ‭

50%
+0 −0
Q&A What is the Habitable Zone of a Red Dwarf star?

This question is pretty straightforward: What is the minimum and maximum distance for a planet to be in the habitable zone of an average sized (not biggest, not smallest) Red Dwarf star?

3 answers  ·  posted 5y ago by Blue Devil‭  ·  last activity 5y ago by Blue Devil‭

50%
+0 −0
Q&A What would life be like on a planet that spun just fast enough to negate gravity?

Imagine a world that spun just fast enough (and had a strange enough composition to hold itself together as a spinning sphere) to create an outward, centrifugal force which was as strong as its gra...

4 answers  ·  posted 8y ago by Hoytman‭  ·  last activity 5y ago by Hoytman‭

Question planets gravity
50%
+0 −0
Q&A What would a world-ending meteor impact look like from the ground?

I've read a lot of questions about the specifics of meteor impacts on this site, but strangely this one seems to still elude me: Assume a meteor of sufficient mass and speed to wipe out human life...

1 answer  ·  posted 5y ago by Naota‭  ·  last activity 5y ago by Naota‭

Question planets meteor
50%
+0 −0
Q&A Could a gas giant have a stable orbit within the asteroid belt?

By a stable orbit I mean not getting ejected by the other planets or ejecting them, Let's create a scenario where Neptune occupies an orbit in the asteroid belt at 2.76 AU, Ceres average distance f...

2 answers  ·  posted 7y ago by Stephanie‭  ·  last activity 5y ago by Stephanie‭

50%
+0 −0
Q&A Underground Atmosphere

I have a terrestrial planet that is similar to Mars in many ways, a desert-like surface, thin atmosphere, and inhospitable to large flora and fauna as we know it. This planet has ceased tectonic ...

4 answers  ·  posted 5y ago by Thalassan‭  ·  last activity 5y ago by Thalassan‭

50%
+0 −0
Q&A Distance between star systems

I'm writing a story that will eventually escalate from being focused on one planet to the entire star system that planet belongs to, and finally to a big story involving the two nearest star system...

5 answers  ·  posted 5y ago by Blue Devil‭  ·  last activity 5y ago by Blue Devil‭

50%
+0 −0
Q&A Desert planet with forests at the poles

I'm thinking up a Mars or Venus type planet where the poles (or one pole) has a forest growing out of it due to a device that is used to make the planet more habitable by creating a oxygen friendly...

4 answers  ·  posted 5y ago by Brandon‭  ·  last activity 5y ago by Brandon‭

50%
+0 −0
Q&A How can I destroy a planet with antimatter?

So I found the base of these pesky rebels on this planet and I am tasked with destroying the planet to eliminate the rebels once and for all. Unfortunately, my death star has malfunctioned and has ...

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

Question planets antimatter
50%
+0 −0
Q&A Could a terrestrial planet have water for a core?

There's a planet called eaglypt whose surface is 100% barren desert. However, there is a twist: the planet's core consists of liquid water, and there are a few places where this water seeps through...

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

50%
+0 −0
Q&A Can two adjacent, life-sustaining planets orbit a star such that they are rarely near each other?

I have two planets and humans live on both of them. Humans need not have developed on these planets, but the planets should support human life with the allowance that the humans have technology com...

8 answers  ·  posted 6y ago by KoaxialKable‭  ·  last activity 5y ago by KoaxialKable‭

50%
+0 −0
Rigorous Science Building a full-sized Lego Earth - what would it look like at various levels?

Lego representations of Earth have been made at various scales, for example this one: Suppose Slartibartfast made a full-size Earth from Lego (including the oceans being represented as solid blo...

3 answers  ·  posted 5y ago by chasly from UK‭  ·  last activity 5y ago by chasly from UK‭

50%
+0 −0
Q&A Stellar and magnetic parameters for creating polar radiation hazards

I've got a generally earthlike planet, but my goal is to make radiation exposure in the polar regions a much larger hazard than it is on Earth, while not being an issue in other regions. Nothing im...

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

50%
+0 −0
Q&A How does having 3 moons change a planet?

I'm working on a story that takes place on a world that has 3 moons. At least 2 of the moons are the same size. They align extremely rarely. Otherwise, it's an earth-like planet. There is one...

3 answers  ·  posted 5y ago by Tiffany Moon‭  ·  last activity 5y ago by Tiffany Moon‭

Question planets moons gravity
50%
+0 −0
Q&A What can we do to Mars to give it a survivable atmosphere?

Some science-fiction books I've read (including more than a few by Ray Bradbury) have men from Earth living on Mars, walking around outside of enclosures. I know that this is currently not realisti...

7 answers  ·  posted 9y ago by Shokhet‭  ·  last activity 5y ago by Shokhet‭

50%
+0 −0
Q&A Plausible reasons for multiple hot seasons in one solar year

Setup: A planet generally with an earthlike climate, although slightly wetter and warmer as a general rule, with a little more oxygen in the atmosphere, but habitable by unmodified humans. Still h...

10 answers  ·  posted 5y ago by dwllama‭  ·  last activity 5y ago by dwllama‭

50%
+0 −0
Q&A Maximum realistic salinity level with thriving aquatic environment?

I'm trying to create a planet which environment is not immediately lethal to humans, (reasonable oxygen level) however after closer inspection turns out not to be specially Earth-like. One issues ...

2 answers  ·  posted 5y ago by Shadow1024‭  ·  last activity 5y ago by Shadow1024‭

50%
+0 −0
Rigorous Science What size would a planet have to be such that I could throw a tennis ball into orbit?

If I was affixed to the surface of some solid spherical body in space (so as to ignore effects like me floating away), would it be possible for me to throw a tennis ball so that it went into orbit ...

1 answer  ·  posted 5y ago by Lord Null‭  ·  last activity 5y ago by Lord Null‭

Question planets
50%
+0 −0
Q&A How can two planets merge into another, bigger planet?

In my universe, there are two ocean-based planets floating in space. I would like to merge them together in a realistic way. What kind of event could cause the planets to merge into a bigger one? (...

3 answers  ·  posted 6y ago by kraken55‭  ·  last activity 5y ago by kraken55‭

Question planets ocean
50%
+0 −0
Q&A By what mechanism could a planet be locked into permanent solar eclipse?

I've got an image in my head of a world where it's just normal that the star is black with a golden halo around it - in other words, where the planet is in a state of perpetual solar eclipse. Are ...

4 answers  ·  posted 9y ago by Nerrolken‭  ·  last activity 5y ago by Nerrolken‭

50%
+0 −0
Q&A What are materials that could give an atmosphere a deep blue color?

Here's some rough WIP pixel art of the planet I'm trying to create just to give you an idea of what I'm talking about color wise. I'm referencing the dark blue that you see at the poles of the plan...

1 answer  ·  posted 5y ago by Leo Shierts‭  ·  last activity 5y ago by Leo Shierts‭

Question atmosphere planets
50%
+0 −0
Q&A Could a moon or planet exist with "puddles" of breathable air in deep craters?

Could a moon or planet with otherwise no atmosphere maintain gas pockets in sufficiently deep craters, and could it be habitable by humans without pressure or space suits? I found this similar que...

7 answers  ·  posted 5y ago by Professor_Hoover‭  ·  last activity 5y ago by Professor_Hoover‭

50%
+0 −0
Q&A What would an earth-sized world be like if shaped like Ultima Thule?

Recently, pictures taken by the New Horizons space probe were released depicting the unusually-shaped object Ultima Thule. Now, suppose there was an world the size of the Earth, but in the shape o...

3 answers  ·  posted 5y ago by Zauber Paracelsus‭  ·  last activity 5y ago by Zauber Paracelsus‭

50%
+0 −0
Q&A Let's plot a course between Earth and Gor

We know that Gor, or Counter-Earth, is not stable in a long-term sense. Let's handwave that away, or assume that we are dealing with a temporary span of time in which the instability is immaterial....

3 answers  ·  posted 5y ago by Columbia says Reinstate Monica‭  ·  last activity 5y ago by Columbia says Reinstate Monica‭

50%
+0 −0
Q&A Planet Orbiting a Red Dwarf

I'm trying to create my planet orbiting a red dwarf, honestly I've thought other scenarios but it's like every answer opens new questions. I'll just say what I want my planet to be and I'd like you...

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

60%
+1 −0
Q&A Can planets collide and not melt together?

Ok so I've been going around on the internet trying to figure out whether or not when 2 earth like planets of similar densities and makeup collide is it possible for them to bounce off of each othe...

4 answers  ·  posted 5y ago by SlothsAndMe‭  ·  last activity 5y ago by SlothsAndMe‭

50%
+0 −0
Q&A Is a planetary 'temperature inversion' plausible?

It was disputed in the 1940s-50s whether Venus had a hot surface and cool cloud layer or a cool surface and hot cloud layer. As I recall, both were considered at the limits of plausibility a...

1 answer  ·  posted 5y ago by Tristan Klassen‭  ·  last activity 5y ago by Tristan Klassen‭

Question atmosphere planets
50%
+0 −0
Q&A Equation to get the size of a crater created by a meteor strike?

Im trying to find the equation to the the size of the resulting crater created by meteor strike when I have the mass, volume, diameter, density, velocity and kinetic energy of the meteor Can an...

2 answers  ·  posted 5y ago by user58119‭  ·  last activity 5y ago by user58119‭

50%
+0 −0
Q&A What could prevent a planet from possessing magnets/electricity?

Without changing a planet from being habitable for humans and keeping a similar ecosystem why could intelligent races never access electricity? What systems need to be erased from the planet to ...

1 answer  ·  posted 5y ago by Soan‭  ·  last activity 5y ago by Soan‭

50%
+0 −0
Q&A Which unique features should have a habitable planet originating from atmosphere stripped waterworld?

Premises: red dwarfs tend to have violent sun storms in their early years, thus are expected to strip atmosphere of planets that may be in their habitable zones; water worlds (including planets w...

2 answers  ·  posted 5y ago by Shadow1024‭  ·  last activity 5y ago by Shadow1024‭