Scientific Speculation

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Using a melon organ on land. Plausible?

1 answer · last activity 10 months ago by ProjectApex‭

evolution creature-design

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How could medical petrification work?

2 answers · last activity 10 months ago by Mephistopheles‭

science-based technology nanotechnology chemistry biochemistry

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Planet with double the orbital period of Earth

4 answers · last activity 10 months ago by Julianne‭

planets science-based rogue-planets science-fiction

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How can antibodies induce a demigod transformation?

1 answer · last activity 10 months ago by Incognito‭

biology technology genetics

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How close an orbit could you get to Earth with a planet-sized object/ship without severely disrupting Earth's orbit?

3 answers · last activity 10 months ago by DWKraus‭

space travel spaceships orbital-mechanics space-travel ships

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Durability of materials in ideal conditions

2 answers · last activity 10 months ago by rwallace‭

science-based time materials

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Acid-spitting dragons

4 answers · last activity 10 months ago by user3556983‭

fauna creature-design dragons zoology

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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?

2 answers · last activity 10 months ago by In the name of the story‭

planets geography geology

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Does the humanoid body plan necessitate sapience to be viable?

3 answers · last activity 10 months ago by icewar1908‭

reality-check evolution science-based sapience

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Genetics and Population Dynamics of a 7-sex system

3 answers · last activity 10 months ago by Ettina Kitten‭

biology reproduction xenobiology

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Genetically engineered bionically enhanced insects in lieu of robots

1 answer · last activity 10 months ago by Rusty‭

biology science-based cyborg insects

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Giant caves. How do they form?

2 answers · last activity 10 months ago by Seraphim‭

reality-check geography

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The Serina Series: Episode I: Cats

2 answers · last activity 10 months ago by JohnWDailey‭

evolution science-based adaptability alternate-worlds mammals

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Do dead human bodies have a particular smell?

3 answers · last activity 10 months ago by user2352714‭

biology humans blood detection

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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

3 answers · last activity 10 months ago by RJ0001‭

space planets spaceships solar-system ships science-fiction

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What would a house, designed to accomodate a dragon, look like?

2 answers · last activity 10 months ago by Mephistopheles‭

science-based dragons architecture

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Could a centaur eat something that is poisonous to humans but not horses?

2 answers · last activity 10 months ago by AshaC33‭

biology races centaur fantasy-races poisons

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

3 answers · last activity 10 months ago by N. Bleac‭

planets science-based radiation

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How Would I Believably Wipe Out an Entire Planet's Population and Culture Without Destroying Said Planet?

5 answers · last activity 10 months ago by The Weasel Sagas‭

reality-check planets civilization apocalypse post-apocalypse death

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Life develops on a moon left in darkness?

1 answer · last activity 10 months ago by Greenie E. - Reinstate Monica‭

biology science-based xenobiology

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How would three small moons, rather than one large one, effect an earth-like planet?

1 answer · last activity 10 months ago by Puck‭

reality-check science-based moons

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How can a "magic" mirror flash blind people?

3 answers · last activity 10 months ago by Mephistopheles‭

science-based technology light

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Technological "dungeon" designed to last for millennia

1 answer · last activity 10 months ago by Bogdan 705‭

science-based technology dungeons

50%

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A Mammal with Electrical Defenses

1 answer · last activity 10 months ago by user3556983‭

biology electricity zoology city

40%

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Would serial killers be a thing In a world where duels to the death are perfectly legal?

1 answer · last activity 10 months ago by Jordy McCroquette‭

reality-check psychology

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Can cherenkov effect be used for telling how fast FTL spaceship moves?

1 answer · last activity 10 months ago by user6760‭

science-based faster-than-light mathematics light science-fiction

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If Earth had a smaller second moon, what would the sky look like?

1 answer · last activity 10 months ago by RobotPQ30‭

earth-like science-based moons earth science-fiction alternate-earth

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Language that cannot be divided into words?

20 answers · last activity 10 months ago by lirtosiast‭

science-based aliens language

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I need a spacecraft to be pulled into the sun's gravity!

2 answers · last activity 10 months ago by zengun309‭

reality-check gravity

60%

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Could ocean and wind currents form on a tidally heated body

0 answers · last activity 10 months ago by Samantha Clark‭

weather reality-check moons

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can spacecraft heat be 'vented' with entangled particles?

3 answers · last activity 10 months ago by Daikael‭

space reality-check science-based spaceships ships science-fiction

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Where can you find berries that eat people from the inside out?

4 answers · last activity 10 months ago by Clockwork Parzival‭

creature-design flora ecology alcohol

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What is the minimum and maximum gravity level that nearly all humans can sustain over a 5 year period?

4 answers · last activity 10 months ago by galactic_analyzer‭

humans adaptability gravity health

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Evolution of flying skulls?

3 answers · last activity 10 months ago by bio‭

reality-check evolution fauna creature-design

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A tiny fire-breather

2 answers · last activity 10 months ago by user3556983‭

biology dragons zoology

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What would happen if a black person used genetic modification to turn off the MC1R gene?

2 answers · last activity 10 months ago by Sabrine Crystal Santos‭

biology genetics genetic-engineering engineering

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Adjusting to the Sound of a Waterfall

5 answers · last activity 10 months ago by Halfthawed‭

biology waterfall

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Werewolves and sense of smell, what is reasonable for them to accomplish with it?

3 answers · last activity 10 months ago by Demigan‭

biology chemistry biochemistry werewolf

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Hematophagic Organism Body Size

1 answer · last activity 10 months ago by Thalassan‭

biology evolution

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How could Ice Spikes naturally occur?

4 answers · last activity 10 months ago by DigiAB‭

climate reality-check extreme-terrain

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Possibly of achieving prolonged immortality

3 answers · last activity 10 months ago by RotNDecay‭

biology science-based death immortality

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So, how do I put the extra muscle, needed for flight, into a large flying creatures like dragons?

3 answers · last activity 10 months ago by Mephistopheles‭

science-based creature-design dragons flight light bio-mechanics

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What's the largest a canine could realistically get?

1 answer · last activity 10 months ago by icewar1908‭

biology evolution science-based creature-design

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What aquatic life would utterly deplete the soil of a specific nutrient?

3 answers · last activity 10 months ago by user72058‭

biology culture geology agriculture chemistry zoology

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How do I calculate the total time dilation experienced by an accelerating ship?

1 answer · last activity 10 months ago by Starsong67‭

space spaceships time ships time-manipulation

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How/why could dragons develop six limbs?

3 answers · last activity 10 months ago by Puck‭

science-based creature-design

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How can elves prevent specialization among their species?

2 answers · last activity 10 months ago by Incognito‭

biology society xenobiology

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Building an interstellar starship during transit

5 answers · last activity 10 months ago by Adam Reynolds‭

space travel reality-check spaceships space-travel ships

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Could my Triclops exist?

1 answer · last activity 10 months ago by icewar1908‭

biology evolution science-based creature-design mythical-creatures

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Effect of Prolonged Egg Diapause on Species

2 answers · last activity 10 months ago by Thalassan‭

biology genetics

Communities