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Questions tagged [microgravity]

For questions about environments with extremely low perceived gravity (colloquially referred to as "zero gravity", usually referring to a free-fall environment in space) and the impact of such environments on creatures and technology.

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What range of altitudes would not be fatal for an astronaut falling from height on the moon?

Imagine I'm writing a sci fi thriller novel set in the modern day, on a space station orbiting the Moon. The crews are supposed to deliver supplies to a lunar station on the Moon, they board a shuttle ...
user6760's user avatar
  • 48k
10 votes
7 answers
2k views

Why would a molten alloy need to be jettisoned into low-to-medium orbit to cool as part of the manufacturing process?

I'm working on a game idea and one of the mechanics I had in mind was making it so a premium material had to be formed by jettisoning it into orbit and letting it cool there while you guard it with ...
Arvex's user avatar
  • 3,034
2 votes
2 answers
393 views

How do Winged Sapient Creatures Keep from Panicking in Zero G?

I have plenty of space fairing aliens with wings that are capable of flight. I can’t help myself it’s just a cool feature for an alien and a have. But I want to adress A potential issue in getting a ...
Jacob Badger's user avatar
  • 2,333
6 votes
6 answers
992 views

Static Floating Objects in Zero Gravity

In Ender’s Game, the Battleroom is comprised of large, static objects called “stars” that are organized into patterns to create an environment for zero-gravity Laser Tag. Presumably the stars don’t ...
Mark Price's user avatar
  • 2,438
2 votes
1 answer
100 views

Could a bunch of rocks form a center of gravity and orbit around it?

Essentially, 2 earth sized planets whacked each other, shattered and the collective gravity caused them to orbit around a semi-central area. The rocks range from boulder sized, to 30km long at the ...
Blue Skin and Glowing Red Eyes's user avatar
7 votes
1 answer
180 views

The immediate and long term effects of slashing wounds in microgravity

What would be the specific long term and short term outcomes of slashing wounds in microgravity? The scenario is that a normal adult is slashed with a knife in a microgravity environment. Assume ...
Englishman Bob's user avatar
4 votes
2 answers
260 views

Low G vs High G planets and floating species

So, i want to make a planet with these requirements: A higher surface pressure than earth, and an atmosphere that could last long enough for intelligent life to appear. (If possible), medium or large ...
Carlos Samuel Ariza's user avatar
2 votes
2 answers
450 views

Would digitigrade legs be superior in low gravity for a bipedal organism?

all, I was reading another post on this forum about humans with digitigrade legs, mostly noting that they were relatively inefficient due to constant exertion to remain standing. On a planet with ...
Mark Price's user avatar
  • 2,438
5 votes
2 answers
297 views

How large could a blue whale get in a zero-gravity environment?

Let's say that I had some sort of habitat in a space station or similar structure, which had everything a blue whale would need to survive, but did not have any gravity. How large could a blue whale ...
Land Placoderm's user avatar
10 votes
3 answers
1k views

Placing a planet on the famous Escape Velocity Graph

If I'm understanding the chart correctly, in order for a planet with lower gravity than Earth (smaller than Earth), but with decent magnetosphere, to hold on to an atmosphere with oxygen, and water on ...
Len's user avatar
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1 vote
3 answers
162 views

Gravity at the interior poles inside a large spinning sphere?

From other answers I've determined that gravity on the interior of a large spinning sphere (like a Dyson Sphere) could create a desired gravity at the equator at the inner surface. But what would ...
Len's user avatar
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6 votes
3 answers
2k views

Low gravity planet, giant creatures?

I want to create a planet that has: Low gravity. Giant creatures (not quite Godzilla sized, but bigger than Dinosaurs). Human explorers should be able to jump incredibly high there, maybe even fly/...
Len's user avatar
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2 votes
2 answers
136 views

How to do repairs during high G maneuvers?

In Nemesis Games during the battle a character moves through the ship. Since the ship is maneuvering they get banged around a lot. My books are written with a tech level similar to the Expanse so this ...
11Bravo's user avatar
  • 2,082
4 votes
3 answers
166 views

Mugging someone in 0 gravity?

It is a dark night and an innocent civilian is floating along a alleyway when someone jumps them. They have a bat and want the civilian's money. But if the mugger hits the person they will fly away ...
11Bravo's user avatar
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6 votes
8 answers
2k views

Ricochet during boarding in space?

In space, boarding parties could be used to effectively take over ships without severely damaging them. Piracy would be much easier. But what about weapons? Your average pirate will have a slug ...
11Bravo's user avatar
  • 2,082
24 votes
6 answers
4k views

Zero-gravity space bar fight?

I am having a bar fight instead. 8 space marines are getting hammered when all of a sudden a cult shows up and starts a bar fight in the zero-G bar where the marines are. The cult is also rather ...
11Bravo's user avatar
  • 2,082
32 votes
7 answers
6k views

How could a 6-way, zero-G, space constrained, 3D, flying car intersection work?

Built within an asteroid belt (near convenient resources) is a densely populated human settlement. While not a "planned city", the settlement has expanded in a organised, grid like fashion ...
User12321313's user avatar
  • 1,320
-4 votes
1 answer
104 views

What would it like for a human to be near weightless?

Alright, so I was creating an anti-gravity device (handwaved) in a new world, that counteracts certain amounts of weight. I was wondering what would happen if the device counteracted just enough of ...
Popplio Lover's user avatar
-2 votes
3 answers
211 views

What would be the biggest threat if gravity stopped? [closed]

Suppose that the law of gravitation suddenly “stops working” one day, and all gravitational forces cease to exist. What would this mean for people on Earth? Could we survive for very long? If not, ...
Franklin Pezzuti Dyer's user avatar
1 vote
3 answers
212 views

how to get around a centrifugal force gravity ship

Lets say you had a really big space ship that uses the ramjet method to collect hydrogen. It can only generate gravity in a ring spinning around the collection cone. This means there's nothing in the ...
Joe Smith's user avatar
  • 3,192
1 vote
0 answers
89 views

How would a civilization on a planet with 1/10 Earth gravity look like? [closed]

I have a lot of book ideas, and one of them is set on a planet with very low gravity. It has the same size as Earth, but with 1/10 the density. It has no satellites. How would the lifeforms be ...
The_CIA's user avatar
  • 778
15 votes
6 answers
4k views

Constant acceleration as artificial gravity. Would flipping over halfway still be comfortable?

My question isn't about whether constant acceleration can create artificial gravity, as I know that it can. I am thinking more about worldbuilding in the sense of a practical transportation system ...
dozTK421's user avatar
  • 385
6 votes
2 answers
120 views

How would multicellular organisms evolve in a microgravity ocean?

How would living organisms develop/evolve in a very-low g ocean environment? The environment would be a small radioactive core surrounded by a small mass of water, less than 100 km in diameter, in the ...
Speedphoenix's user avatar
4 votes
4 answers
295 views

How to adapt the Royal and Ancient Game to Zero-G?

Golf depends on friction, which eventually stops a rolling ball. Air friction seems to not be enough for a golf course that consists of 18 holes with a total length of 1-2 kilometers. This is not the ...
MedwedianPresident's user avatar
10 votes
6 answers
323 views

Would inflating hot spheres of metal be a viable zero-g, vacuum ship-building technique?

I would like to have a zero-g spaceship factory in orbit, and would like to know if this is a viable way to work: I imagine melting metal into a big blob, then inserting a tube and pumping in gas to ...
Innovine's user avatar
  • 6,084
1 vote
1 answer
153 views

Ant colony in Zero Gravity [closed]

The image below is an Ant colony in the glass chamber. If the Ants in Chamber filled with soil can generate such structure of colonies. What would happen if the Ants are kept in the same chamber but ...
tusharkhade's user avatar
5 votes
5 answers
316 views

What method would an average human use to move in one-tenth of earth's gravity with no prior training?

You are standing near a wall in an enclosed space of 50m(L) x 50m(W) x 3m(H) at floor level with 0.1G gravity and earth normal atmoshere. You are of average height and mass. You are suffering from ...
Rachael's user avatar
  • 71
3 votes
2 answers
165 views

Artistic performance in low gravity

In my sci fi Earth and Mars are surrounded by space elevators and there is a great exchange of people and goods coming and going among the planets and the thousands of space stations existing in the ...
Rodolfo Penteado's user avatar
3 votes
2 answers
230 views

An amusement park in space

I am wondering what could make an amusement park better if it was in zero G? the people that will visit are already used to living in zero gravity, so something that would amuse us earthlings for them ...
user avatar
8 votes
1 answer
349 views

How would a bird's flight change entering the zero gravity axis of an O'neil cylinder?

This question on space stack begins to tackle how a bird could fly inside an O'Neill cylinder, https://space.stackexchange.com/questions/27665/can-birds-fly-inside-an-oneill-cylinder. Here is the ...
user avatar
2 votes
5 answers
161 views

What would a 2 week vacation on Mars or the moon be like? What fun things could be done in the low gravity? [closed]

Assume that we are talking about some time in the future where we have moon bases & moon resorts along with Mars bases and Mars resorts. I know that extended time on either the moon or mars will ...
Programmer4Life's user avatar
3 votes
5 answers
436 views

Zero G area on rotating wheel space station

If I needed a large area for zero-G training, is there any place to put it on a rotating wheel space station if the hub was needed for docking of spacecraft? I wanted a place on the station that ...
Bob516's user avatar
  • 1,279
15 votes
8 answers
4k views

What kind of footwear is suitable for walking in micro gravity environment?

Set in the near future, the interior of the spaceship is coated with thin layers of Teflon approximately 10mm average thickness on top of titanium alloy which in case you are wondering it is weakly ...
user6760's user avatar
  • 48k
0 votes
2 answers
203 views

Can a human born & raised in zero gee survive on a earth like planet for a short while

I've been toying with an idea of a epic space fantasy where a certain area of the milky way is controlled by decedents of humanity that are born, live & die in spaceships, said "ngees" as the "...
cypher's user avatar
  • 7,113
9 votes
1 answer
437 views

Cracking Knuckles in Zero Gravity [closed]

Cracking knuckles has something to do with air bubbles, but would it work in the same way if there is no gravity? If not, how would it be different? Would there still be a popping sound and/or ...
Nicholette Campbell's user avatar
16 votes
8 answers
3k views

Martial arts in zero or low gravity [duplicate]

How would your design a martial art for use in either zero gravity (in space) or lower gravity (on another planet or moon)? Constraints: A practical martial art, for real world use, not a sport or ...
Marcus Downing's user avatar
9 votes
2 answers
585 views

What does the physiology and biochemistry of a vacuum adapted post-human look like? Part 3: Metabolism

I am a post-human adapted for permanent life in vacuum and micro-gravity. How might my physiology and biochemistry overcome the following challenges? Please note I have a strong cultural aversion to ...
Chairman Yang's user avatar
6 votes
4 answers
456 views

What does the physiology and biochemistry of a vacuum adapted post-human look like? Part 2: Temperature control

I am a post-human adapted for permanent life in vacuum and micro-gravity. How might my physiology and biochemistry overcome the following challenges? Please note I have a strong cultural aversion to ...
Chairman Yang's user avatar
5 votes
5 answers
677 views

What does the physiology and biochemistry of a vacuum adapted post-human look like? Part 1: Radiation resistance

I am a post-human adapted for permanent life in vacuum and micro-gravity. How might my physiology and biochemistry overcome the following challenges? Please note I have a strong cultural aversion to ...
Chairman Yang's user avatar
0 votes
1 answer
826 views

Life in a gas torus around a neutron star

Larry Niven wrote a novel called The Integral Trees, which was followed by a sequel The Smoke Ring. This is Wikipedia's synopsis of the setting: The story occurs around the fictional neutron star ...
SealBoi's user avatar
  • 14.9k
13 votes
5 answers
303 views

Microgravity BBQ setup

The development of microgravity cuisine is an interesting topic, especially when it comes to transferring simple processes like the successful thermochemical processing of muscle tissues (e.g. ...
MedwedianPresident's user avatar
15 votes
8 answers
2k views

How to go out for a walk in microgravity?

Suppose that humanity has spread out through space. Humans are exploring all kinds of environments, including some with gravity much weaker than our Moon's: Ceres (surface gravity = 0.28 m/s2) ...
The Square-Cube Law's user avatar
3 votes
1 answer
1k views

Can this type of winged humanoid possibly work? See diagrams

So, I don't believe that the "angelic" type winged human can exist (y'know, the kind with the feathery wings sprouting from the back). Too many problems of anatomy, weight, etc. But I am trying to ...
Len's user avatar
  • 4,948
10 votes
1 answer
373 views

Flight within the shared atmosphere of a Rocheworld, and between the planets, with low gravity wrinkle?

In a Rocheworld scenario where two planets are tidally locked and share an atmosphere, but where both the planets are so small that their gravity is very little (as low as one of the dwarf planets in ...
Len's user avatar
  • 4,948
1 vote
1 answer
251 views

Falling in a micro-gravity scenario?

Let’s say we have a micro-gravity environment where people are staying afloat in the air because they have wings or some other means of resisting the low gravity, but then for some reason they find ...
Len's user avatar
  • 4,948
5 votes
8 answers
877 views

How can a small planetoid hold an atmosphere under artificial means?

Edit: Before I give up on this I wonder how could an advanced civilization create conditions on a small planetoid (Ceres sized?) to keep an Earth level breathable atmosphere? It seems like its ...
Len's user avatar
  • 4,948
3 votes
2 answers
316 views

Is this gas giant possible?

I want to create a gas giant planet. The parameters I would like for it to have are: It should have a large layer of gas within its atmosphere that living creatures including humans can survive and ...
Len's user avatar
  • 4,948
2 votes
2 answers
248 views

How would a human have to be gene-geneered to thrive in a zero-g environment?

I'm trying to create a massive contained zero-g environment that can sustain many life-forms including humans. The research that I'm doing doesn't make it look good. Seems like we just need gravity. ...
Len's user avatar
  • 4,948
2 votes
4 answers
344 views

Can an inhabitable zero-G environment occur in nature?

I want to set a story within a zero gravity environment wherein creatures can live, breath the air, fly and flourish. The environment should supply all the things living creatures (as we know them) ...
Len's user avatar
  • 4,948
4 votes
2 answers
165 views

What would happen all of the loose objects inside a space station in geostationary orbit around earth [duplicate]

If i have a space elevator with a space station at the point of being in geostationary orbit what would happen to all the stuff inside as the station should be at the "0g" point? Important info ...
Arthur Durbin's user avatar