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Posts tagged planets

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Q&A What would the consequences be if there was a planet other than Earth, Venus, or Mars that was in the habitable zone?

Okay, there are two habitable worlds in the Solar System. One of them is Earth. Human history goes mainly the way it really went. Then, there is another planet with a sentient, equally advanced spe...

3 answers  ·  posted 9y ago by JDSweetBeat‭  ·  last activity 8y ago by JDSweetBeat‭

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Q&A Two new planets orbiting the Sun beyond Pluto

What would happen if there was two more planets beyond Pluto, one with two times the size of Pluto and another with 4× the size of Mars, I'm curious to know what effects this would have on the plan...

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

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Q&A Is life possible on a world where the water floats in the air?

Let's assume I have a planet and the planet itself is made out of something solid. Around the floating rock is a layer of gas, then a layer of liquid and then a layer of gas again. Thus the sea fl...

1 answer  ·  posted 8y ago by BlueWizard‭  ·  last activity 8y ago by BlueWizard‭

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Q&A On the habitability of the night side of a tidally locked planet

If an Earth-like planet was tidally locked to a star similar to Sirius A, at which distance from the star would the night side be able to have liquid water, possibly with an average temperature of ...

2 answers  ·  posted 8y ago by G-Temez‭  ·  last activity 8y ago by G-Temez‭

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Q&A How would Weather and Regional climate work on a Flat world?

For my WIP's setting I'm using a variation of the Sky World concept. The cosmos looks very similar to the Astral Sea. The shape of the cosmos akin to a torus and filled with a silvery ether a thin...

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

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Q&A Attributes of an alien world with a larger role for fungi

I would like to explore how to design an alien planet featuring plants and animals but with a much more prominent ecological role for fungi. More fungi, larger fungi, more complex and beautiful fun...

3 answers  ·  posted 8y ago by rumguff‭  ·  last activity 8y ago by rumguff‭

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Q&A Antimatter planet on normal matter star

Consideration For the sake of argument, please assume the following: The planet in question is around the size of Earth The planet may contain native intelligent life, artificially engineered Th...

3 answers  ·  posted 8y ago by Hendrik Lie‭  ·  last activity 8y ago by Hendrik Lie‭

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Rigorous Science A spacecraft the size of Apollo 11's lunar module, composed of antimatter, around a normal star

After writing this question, I came up with a new question. Consideration The considerations are mostly similar to the linked question (reading it is highly encouraged, as I am trying to post as...

1 answer  ·  posted 8y ago by Hendrik Lie‭  ·  last activity 8y ago by Hendrik Lie‭

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Q&A What is required to make watery, blue-white colored jovian planet at habitable zone of a star

Background In my story, HD 28185 star system harbors life. One of them is a jovian HD 28185 d (Subralis), located around 1AU of this sun-like star. In-universe, Subralis is approximately 132,000 k...

3 answers  ·  posted 9y ago by Hendrik Lie‭  ·  last activity 8y ago by Hendrik Lie‭

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Q&A What is the expected terrain for an arid highly eccentric Earth-like planet?

For this question lets take a trip to Slyo Dacas: Slyo Dacas (sil-yo-dak-iss) is a world roughly the same size of Earth with a decent magnetic field and no moons. The world is a bit drier than...

3 answers  ·  posted 8y ago by Josh Belmont‭  ·  last activity 8y ago by Josh Belmont‭

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Q&A What would the Earth eventually look like, if it was somehow stripped of its atmosphere today?

Consider the present day Earth. Now, through some event (magic, a giant maid with a vacuum cleaner, a disgruntled alien did it, ...), our planet is stripped of its atmosphere. Assume that this happ...

6 answers  ·  posted 8y ago by Canina‭  ·  last activity 8y ago by Canina‭

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Q&A Can we create an Earth-like planet from Oort cloud?

Say a technological advanced civilization wants to create an Earth-like planet using materials from the Oort cloud. Could they really be able to create a habitable world resembling Earth using ju...

2 answers  ·  posted 8y ago by user6760‭  ·  last activity 8y ago by user6760‭

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Rigorous Science What is the best planetary orbit around a black hole in order to support life?

Note: I am aware of a previous question Physiological effects of living on a world close to a black hole As I understand it, that question refers specifically to a planet that is in a non-ideal ...

2 answers  ·  posted 8y ago by chasly from UK‭  ·  last activity 8y ago by chasly from UK‭

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Q&A Could you create a travelling planet?

Assuming fission thrusters as described here: Would a nuclear fission thruster with continuous fuel injection be possible?, and assuming drilling for the planet's molten mettle core as discussed he...

4 answers  ·  posted 8y ago by Lorry Laurence mcLarry‭  ·  last activity 8y ago by Lorry Laurence mcLarry‭

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Q&A Can a planet with a dead core still generate a strong magnetic field?

Imagine a world with a dead core, like Mars, but covered in water. This world has managed to hold on to its atmosphere and quite a bit of its water as well. I'm sure the prodigious life there would...

3 answers  ·  posted 8y ago by Josh Belmont‭  ·  last activity 8y ago by Josh Belmont‭

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Q&A Consequences or Benefits of a Binary Planet?

I'm curious to the affect a planet would have if it orbited around, or was orbited by another planet of equal, slightly larger mass. Say if Earth had, not the moon, but a planetary object the same ...

1 answer  ·  posted 8y ago by user11527‭  ·  last activity 8y ago by user11527‭

Question planets
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Q&A What is the maxiumum depth for an Earth like atmosphere?

I am sure most of you have seen Star Wars. In Episode IV: The Empire Strikes Back our heroes travel to Bespin, a gas planet with a habitable zone to refuel at the floating cloud city. Well of cou...

1 answer  ·  posted 8y ago by Josh Belmont‭  ·  last activity 8y ago by Josh Belmont‭

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Q&A What would've happened if we used Europa's water to integrate into Mars atmosphere?

Lets assume we as humankind can, not only wormhole the spacecraft, but planets and moons. So, what would've happened to Mars if we pulled icy Europa closer to the sun, we might use our flaming star...

2 answers  ·  posted 9y ago by undulationer‭  ·  last activity 8y ago by undulationer‭

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Q&A Ocean and air currents on a water planet

I just stumbled across this website the other day, and this is my first time posting, so apologies if the question is too vague or improperly worded. I am trying to build an all ocean world. I'm ...

3 answers  ·  posted 9y ago by Cascadiahawk‭  ·  last activity 8y ago by Cascadiahawk‭

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Q&A Magnetic Celestial Bodies in Orbit

What would be the effect of large magnetic celestial bodies orbiting each other? Could a star have enough metallic content to become magnetic? What would the effect be on magnetic planets in orbi...

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

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Q&A Orbit of a double planet

In a system where 2 planets of similar mass are orbiting around a common barycenter, would the following configuration considered stable on the long run? They orbit at 1,6 AU from their star The ...

1 answer  ·  posted 8y ago by Vincent‭  ·  last activity 8y ago by Vincent‭

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Q&A Can I significantly shorten the days on a planet that can support human life?

I would like to have a world on which humans can live unaided -- they can breathe, the climate is workable, they can eat the local vegetation, etc -- but on which a complete day is substantially sh...

5 answers  ·  posted 9y ago by Monica Cellio‭  ·  last activity 8y ago by Monica Cellio‭

Question planets time
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Q&A Is it possible to have lightning create complicated fulgurite geometry above ground on a magnetically active world?

Hanorane (han-or-a-ney) is a moon with a dynamic surface covered in charged sand particles that drift in massive rivers suspended by electrostatic levitation. The only solid ground is the worn an...

1 answer  ·  posted 8y ago by Josh Belmont‭  ·  last activity 8y ago by Josh Belmont‭

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Q&A Maximum number of earth-like planets in a system

I am trying to build a planetary system with a maximum number of earth/near earth like planets/moons. What would the maximum number of possible earth like planets be? I am assuming that some woul...

3 answers  ·  posted 8y ago by patton4014‭  ·  last activity 8y ago by patton4014‭

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Q&A What would happen with a supermassive planet?

What would happen to a planet if it was really massive, like something around the size of the sun (likely made of asteroid materials)? What kind of environment might it have? What would happen to ...

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

Question space planets
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Q&A Permanent settlements on the surface of ice

Suppose a planet is covered with floating ice on top of water ocean and has no dry land. Would it be possible to establish permanent settlements, cities? Particularly I am interested in technolog...

5 answers  ·  posted 9y ago by Anixx‭  ·  last activity 8y ago by Anixx‭

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Q&A Could an ocean planet reflect its watery textures onto earth?

Let's say there's an OCEAN planet smaller than Earth but larger than the Moon. The Sun lights on the ocean planet reflecting the water textures onto Earth. Would it be possible to see watery refle...

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

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Q&A How would Death Star move between systems?

Similar to the Death Star(s) depicted in Star Wars universe, my question is how do such a massive body move from its orbit around its parent planet across the stellar system or galaxy into the enem...

4 answers  ·  posted 8y ago by user6760‭  ·  last activity 8y ago by user6760‭

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Q&A Scale down the Solar system according to Earth

Let's say I have an OCD and I want everything to be perfect. I want all the planets and The sun of our solar system to be equal in size. Apart from that, I want the distance between the orbits to b...

4 answers  ·  posted 9y ago by Name changed to mask identity‭  ·  last activity 9y ago by Name changed to mask identity‭

Question planets earth
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Q&A How can I get a very large air bubble floating under Europa's ice?

I hope this isn't a stupid question ("just add air"). I would like my intrepid explorers to have drilled through the ice of Europa and into the water without creating a geyser (they plugged the ho...

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

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Rigorous Science Apparent magnitude of my moon as seen from the planet's surface

Setting: we have a fantasy world which is a planet with much of the same conditions that can be seen on Earth, but with the difference that it is orbited by a moon with a mean diameter of 3 500 km....

1 answer  ·  posted 9y ago by fantasia‭  ·  last activity 9y ago by fantasia‭

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Q&A What phenomenon/situation would thwart the development of electronics by a society?

I'm interested in exploring an advanced society where electronic technology and infrastructure were not developed. What plausible natural phenomenon or context would prevent, or at least strongly d...

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

Question planets
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Q&A Would oxygen pool in sink holes if the upper atmosphere was helium, hydrogen and methane?

Imagine a big planet, gravity quite strong, 1.5 times earth. Irregular surface, rocky etc... (though flora and fauna will come into it later). It has a very thick atmosphere, drained off by a twin ...

7 answers  ·  posted 9y ago by JimDiGriz‭  ·  last activity 9y ago by JimDiGriz‭

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Q&A Stabilizing the obliquity of a planet

It is said that the Moon plays a significant role on stabilizing the obliquity of Earth (or call it the axial tilt). Without it, the tilt of the planet is subject to great variations causing unpred...

2 answers  ·  posted 9y ago by Vincent‭  ·  last activity 9y ago by Vincent‭

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Q&A Can planets die of old age

I was wondering if planets die after a certain amount of time, perhaps because of decay? If this is the case, how do they die and how long does it take? Do they implode? Explode or perhaps just f...

12 answers  ·  posted 9y ago by Stefan‭  ·  last activity 9y ago by Stefan‭

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Q&A What influences Trojan Asteroid density?

I'm putting together a solar system for a story I'm working on, and in this solar system the most important planet is a particularly large Ice giant and its big moon nestled in the star's habitable...

1 answer  ·  posted 9y ago by Khwarezm‭  ·  last activity 9y ago by Khwarezm‭

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Q&A Alternate Timeline/Universe where the extinction level incident that occurred 65 million years ago didn't happen

Disclaimer : I'm working on the entire pseudo-science thing , so the scientific part of this whole thing isn't made up properly... Certain things have not been explained , this is to keep the post ...

3 answers  ·  posted 9y ago by Greymtr‭  ·  last activity 9y ago by Greymtr‭

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Q&A Would it, in theory, be possible to get a planet like Mars's inner core spinning by crashing another planet or moon into it?

I'm not sure if enough heat would be generated, but this might be a simplest way to get Mars' Magnetic field going, by crashing a large body into it (perhaps Ceres?) - and, I realize the entire ide...

4 answers  ·  posted 9y ago by userLTK‭  ·  last activity 9y ago by userLTK‭

Question planets
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Q&A What would cause orange skies?

I'm starting a whole new planet for a story and would like it to have an orange sky during the day. At a basic level (I am not a smart man) what chemical composition would be most conducive to Ora...

3 answers  ·  posted 9y ago by Wompguinea‭  ·  last activity 9y ago by Wompguinea‭

Question atmosphere planets
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Q&A Seasons on a circumbinary planet

(I've tried to research this online but I'm a linguist, not a physicist, and most places that discuss this quickly get too technical for me. Simple answers will get tons of gratitude!) I imagine t...

2 answers  ·  posted 9y ago by Xii‭  ·  last activity 9y ago by Xii‭

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Q&A Could the moons of a Gas Giant all be habitable if that planet was in the habitable zone?

I ask this as a basis for a World (in this case Moons) Building I'm doing. I came up with a couple of different problems and some possible solutions to those problems: All of these questions pre...

2 answers  ·  posted 9y ago by Hirahito‭  ·  last activity 9y ago by Hirahito‭

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Q&A Adjusting to changes in gravity and pressure

You go to sleep one day, and wake up on a different planet. Let's say the atmosphere of this planet has about the same composition as on Earth. Actually, this planet has pretty much all of the same...

2 answers  ·  posted 9y ago by Seth‭  ·  last activity 9y ago by Seth‭

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Q&A Red giant Habitable zone

I was looking a bit at the evolution of Stars and one thing I sometimes see floated is this idea that in the far flung future, when the sun has ballooned into a red giant and the earth burned to a ...

3 answers  ·  posted 9y ago by Khwarezm‭  ·  last activity 9y ago by Khwarezm‭

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Q&A A planet in the center of the system

In most star systems, planets orbit around a star. Is it possible for a planet to be so massive/heavy/dense that a star(and other planets) orbit it instead? Bonus points if the planet is also reaso...

3 answers  ·  posted 9y ago by grimmsdottir‭  ·  last activity 9y ago by grimmsdottir‭

Question planets gravity
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Q&A Can a planet hit by a meteor shatter into two pieces? Alternately, if not a meteor, an advanced interstellar weapon?

First, is it possible for a planet hit be a meteor to shatter into two pieces?. Then, can the two pieces remain in orbit? Especially, can they develop a sort of co-orbit around each other?

6 answers  ·  posted 9y ago by Sykik‭  ·  last activity 9y ago by Sykik‭

Question planets
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Q&A How would an intelligent race on a methane world achieve a fire equivalent?

Linked: What would the conditions on a methane world be like? What would animal life on a methane world look like and how would it evolve? Background: Okay, an intelligent race has evolved on a...

1 answer  ·  posted 9y ago by JDSweetBeat‭  ·  last activity 9y ago by JDSweetBeat‭

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Q&A How would life on the satellite of a Super-Jupiter be? Is it even possible for such a satellite to be habitable?

Recently I had an idea for a world setting. A large part of this world focuses around a habitable satellite the size of Earth orbiting a Super-Jupiter. The fact that it's a moon is pretty integral ...

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

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Q&A How would the global environment of a completely urbanized city-planet be affected?

Related: How would a completely urbanized city-planet support its population? How a completely urbanized city-planet be maintained? Why would a completely urbanized city-planet exist? The prope...

3 answers  ·  posted 9y ago by neph‭  ·  last activity 9y ago by neph‭

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Q&A What would the conditions on a methane world be like?

The picture above is a representation of a Methane Earth. I pulled it from this Wikipedia article on alternative solvents. Several questions deal with whether life would be possible on a world w...

3 answers  ·  posted 9y ago by JDSweetBeat‭  ·  last activity 9y ago by JDSweetBeat‭

Question planets
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Q&A What effects would there be for a hole in Earth

Imagine the Earth is struck by a laser/magic beam capable of piercing it and leaving a lasting hole. What effects would observed? Would there be a difference between the hole(s) being made in the o...

1 answer  ·  posted 9y ago by Memor-X‭  ·  last activity 9y ago by Memor-X‭

Question planets