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Q&A Is it possible to have a planetary system with planets having perfectly synchronized orbits?

I'm imagining a system with a star and something like 6-8 planets. The planets' orbits are (relatively) close to each other, and all share an orbital period that is exactly the same. I.e. the len...

14 answers  ·  posted 7y ago by nanoguy‭  ·  last activity 6y ago by nanoguy‭

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Q&A Where would a vampire-like creature get its energy from?

My main character is based on the basic concept of a vampire. That she needs blood to survive. She was genetically engineered to digest "˜blood' instead of eating. She still needs to drink water. ...

9 answers  ·  posted 7y ago by user44784‭  ·  last activity 6y ago by user44784‭

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Q&A Neurological supercharger out of thin air

Some speculation on a neurological supercharger for a sapient alien species: The supercharger is a natural biochemical compound of some sort produced and stored in a specialized brain-adjacent o...

3 answers  ·  posted 7y ago by rek‭  ·  last activity 7y ago by rek‭

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Q&A What would drive people to risk death in the deep?

Dateline: 2067 Setting: A research base at the bottom of the Marianas Trench Depth: 10,000 meters. Mission Duration: Thirty days A research base lies at the bottom of the Marianas Trench, housi...

14 answers  ·  posted 7y ago by System‭  ·  last activity 7y ago by System‭

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Q&A How would it be possible for a species to evolve naturally occurring halos?

Background: In my world, there are a number of species that stemmed from the 'original base' (humans) who traveled through space for years before a collapse in organized government crippled logist...

9 answers  ·  posted 7y ago by Paradigm‭  ·  last activity 6y ago by Paradigm‭

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Q&A Under what circumstances is Humanity more expendable than Earth?

We assume (since it is not proven yet) that Earth and Humanity are very rare cases in the universe. And in a lot of literature when there is a need to make a choice between Earth and Humanity, (Pse...

12 answers  ·  posted 7y ago by ifyalciner‭  ·  last activity 7y ago by ifyalciner‭

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Q&A Limits of Carbon dating and possible alternatives?

This is for a book. An ancient, badly damaged, base has been found in the asteroid belt. The base has been open to the vacuum of space, although a large proportion of the base is within the body ...

6 answers  ·  posted 7y ago by Gawainuk‭  ·  last activity 5y ago by Gawainuk‭

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Q&A How would the lifts work on a space station which worries about hull breaches?

I'm writing a roleplaying game scenario set on a space station, and was wondering how the lifts (elevators) would work? Specifically, the people who built the station are very health and safety con...

7 answers  ·  posted 7y ago by DrBob‭  ·  last activity 7y ago by DrBob‭

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Q&A Which astronomical or cosmological event would explain periodical low-grav-effect on earth-like planet?

Imagine an earth-like planet on which gravity is reduced by 20%-30% every 15 months. The low-grav-effect should start slowly, reaching its peak/bottom of round about 0.7 g after 6 weeks and should ...

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

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Q&A How can I prove the world is not a desert?

My case is this: My protagonists live in an earthlike world where living in a city on 90kms approximately, protected by extremely big fences so the sandstorm won't hit them. Anyway, they think...

5 answers  ·  posted 7y ago by caryarit ferrer‭  ·  last activity 7y ago by caryarit ferrer‭

Question planets
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Q&A Using magnetic fields to prevent a weaponized warp drive?

I've been thinking of ways that an FTL-capable galaxy would prevent weaponized FTL missiles. Ignoring causality violations and paradoxes, I'm looking for a way to keep something based on an Alcubi...

8 answers  ·  posted 7y ago by Arvex‭  ·  last activity 7y ago by Arvex‭

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Q&A What would the clouds of a planet with 100% surface water look like?

A planet in one of my solar systems has 100% of its surface covered in deep water, many hundreds of kilometers deep. Some criteria relating to the planet. It's fairly close to its host, a sunlike...

3 answers  ·  posted 7y ago by Neon Genisis‭  ·  last activity 7y ago by Neon Genisis‭

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Q&A How quickly could animals evolve?

So, in the world I'm creating, humans have meddled with animals in order to create unicorns, dragons, jackalopes ect. However, some of these animals were more powerful and intelligent than intended...

4 answers  ·  posted 7y ago by Fia94‭  ·  last activity 7y ago by Fia94‭

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Q&A Spaceflight without transistors and nuclear power - how to bend the history of physics?

As stated in the topic: I would like to have Project Olympus-style space stations served by Apollo-like spacecraft in a world where neither nuclear power (and weapons) nor transistors were develope...

12 answers  ·  posted 7y ago by Ijon‭  ·  last activity 7y ago by Ijon‭

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Q&A Why would technology dictate graphical interfaces to be rare on spaceships?

This question differs from that question in that the other question is asking about a change in history while this question is looking for a change in the future. In a near future setting I am w...

38 answers  ·  posted 7y ago by dot_Sp0T‭  ·  last activity 5y ago by dot_Sp0T‭

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Q&A Can somebody live being carried a long distance by a flying, predatory creature?

In my story, I plan on having one of my main characters lifted off the ground by a dragon-like creature and carried a couple miles away. Of course the plan involves them surviving the encounter whe...

4 answers  ·  posted 7y ago by Sydney Gish‭  ·  last activity 7y ago by Sydney Gish‭

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Q&A How can I enforce the use of CRT monitors?

For reference: I am thinking of a story where travel between worlds exists, but people have to "start over" on each world. So they can't just take their current computers to a new world. The monit...

3 answers  ·  posted 7y ago by Wolfie_Waffle‭  ·  last activity 7y ago by Wolfie_Waffle‭

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Q&A How tall could a humanoid get while still capable of supporting their own weight?

I'm currently working on a semi-aquatic humanoid race of aliens, the Soliil. The majority of the race has proportions, anatomy and heights close to that of humans, however, I am working on a much y...

3 answers  ·  posted 7y ago by RaptorBricks‭  ·  last activity 7y ago by RaptorBricks‭

Question biology evolution
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Q&A Would a human-like symbiotic pair of the same race be possible?

Would a human-like race be possible where the young and their parents live and work etc in a symbiotic pair? My idea is inspired by the character(s) Ferra Torr from the game Mortal Kombat X, th...

3 answers  ·  posted 7y ago by WiserBurrito‭  ·  last activity 7y ago by WiserBurrito‭

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Q&A Express Pregnancy: How fast can a mother's body adjust?

You all know the story of a women waking up to find herself heavily pregnant with some demon child or somesuch, or the pregnancy spanning a couple of days/weeks rather than the standard 9 months. C...

2 answers  ·  posted 7y ago by EveryBitHelps‭  ·  last activity 7y ago by EveryBitHelps‭

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Q&A "Feasible" Intergalactic Travel via Brane/Bulk

In attempting to come up with a semi-reasonable method of intergalactic travel, I ended up conceiving a general method of FTL travel relying on brane cosmology and the "bulk" being transversable in...

1 answer  ·  posted 7y ago by nick.schachter‭  ·  last activity 7y ago by nick.schachter‭

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Q&A Effect of destroying the Antarctic Circumpolar Current?

The Antarctic Circumpolar Current is a current which endlessly circles around Antarctica. (Deets: https://en.wikipedia.org/wiki/Antarctic_Circumpolar_Current ) The key factors I want to highligh...

1 answer  ·  posted 7y ago by akaioi‭  ·  last activity 7y ago by akaioi‭

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Q&A Alien Life on a Venus-like World?

Trying to consider how a walking, socially-active sapient plant would evolve and the world it would live in. More specifically, how would something which is essentially a walking tree living in a d...

3 answers  ·  posted 7y ago by adb1‭  ·  last activity 7y ago by adb1‭

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Q&A What size would a diamond made from a human be?

I am writing a science fiction novel where dead humans are turned into diamonds by compacting cremated remains. What size of diamond would the amount of carbon in a human body form? I know that the...

3 answers  ·  posted 7y ago by Catlover‭  ·  last activity 7y ago by Catlover‭

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Q&A What's the smallest my planet mover can be?

Some sufficiently advanced species has decided they will move planets. Let's assume earth-like, life sustaining worlds. The only real way to do this as far as I know is using "gravity tugs" or mes...

4 answers  ·  posted 7y ago by oxide7‭  ·  last activity 7y ago by oxide7‭

Question space