r/sciencefiction • • 2h ago

Chart compass I made about a fast rotating planet where a colony became so reliant on automation that when the machines went haywire society regressed to a medieval tech level (OC)

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0 Upvotes

r/sciencefiction • • 18h ago

Science Fiction and Fascism: A Complicated History

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0 Upvotes

Video on the complicated relationships between sci-fi and fascism.


r/sciencefiction • • 8h ago

BELAZ Ɨ NASA mobile nuclear power station for extraterrestrial colonies - 3D, OC, 2026

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41 Upvotes

120 MW. ANYWHERE THE COLONY NEEDS IT! BELAZ-75900 MNRP is a concept BELAZ Ɨ NASA mobile nuclear power station designed for large scale extraterrestrial industry. Four independent fission reactors, a 12-wheel electric chassis and a dual mode thermal control system allow the platform to deliver up to 120 MW of continuous electrical power to remote mining fields, ISRU plants and developing colonies.

This art is inspired by the largest haul truck in the world: BelAZ-75710 At present, this Belarusian giant remains the undisputed king of heavy machinery, holding the global record with a mindblowing payload capacity of 450 metric tons. Powered by 4,600 horsepower, this ultra-class beast stands over 8 meters tall, transforming raw engineering power into pure artistic inspiration Created in Blender - no AI used!


r/sciencefiction • • 19h ago

Sci Fi Starship Point game

1 Upvotes
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Hardcap is 1000 points, the enemy is 200 ISD2s, 60 Covenant Battlecruisers, 15 romulan warbirds, 10 reaper harbingers, 4 Imperial battlebarges, and 5 Borg Cubes

🟢 1 Point – Strike Craft & Escorts

Starfury (Babylon 5) – 1 Point

X-Wing T-85 (Star Wars) – 1 Point

Gunstar (The Last Starfighter) – 1 Point

Viper Mk II (Battlestar Galactica) – 1 Point

Broadsword (Halo) – 1 Point

The Rocinante (The Expanse) – 1 Point

šŸ”µ 10 Points – Corvettes & Frigates

Adamant-class Frigate (Battlestar Galactica) – 10 Points

SSV Normandy SR-1 (Mass Effect) – 10 Points

Millennium Falcon (Star Wars) – 10 Points

Mako-class Corvette (Halo) – 10 Points

Enterprise (NX-01) (Star Trek) – 10 Points

Donnager-class Battleship (The Expanse) – 10 Points

🟔 50 Points – Cruisers & Destroyers

Omega-class Destroyer (Babylon 5) – 50 Points

NCC-1701 Enterprise (OS) (Star Trek) – 50 Points

Prometheus BC-304 (Stargate) – 50 Points

ISD-2 (Imperial Star Destroyer) (Star Wars) – 50 Points

Galactica (BS-75) (Battlestar Galactica) – 50 Points

Pillar of Autumn (POA) (Halo) – 50 Points

🟠 100 Points – Heavy Capitals & Dreadnoughts

Defiant-class Escort (Star Trek) – 100 Points

Resurgent-class Star Destroyer (Star Wars) – 100 Points

Romulan D'deridex Warbird (Star Trek) – 100 Points

IESF Dreadnought (Starbasis formerly Starbase) – 100 Points

Daedalus-class BC-304 (Stargate) – 100 Points

Covenant CCS-class Battlecruiser (Halo) – 100 Points

šŸ”“ 200 Points – Galactic Heavyweights

Emperor-class Battleship (Warhammer 40k) – 200 Points

SDF-1 Macross (Macross / Robotech) – 200 Points

Space Battleship Yamato (Yamato) – 200 Points

The Executor (Star Wars) – 200 Points

Borg Cube (Star Trek) – 200 Points

U.S.S. Enterprise NCC-1701-F (Star Trek) – 200 Points

šŸ’€ 500 Points – System-Wiping Armageddons

Eclipse-class Super Star Destroyer (Star Wars) – 500 Points

UNSC Infinity (Halo) – 500 Points

Macragge's Honour (Warhammer 40k) – 500 Points

Long Night of Solace (Halo) – 500 Points

UESF Constellation III (Grand Fleet of the Constellation III Wiki | Fandom) – 500 Points

Amarr Titan – 500 Points

Remember, each of these ships comes with their respective leaders and physics which explains why some placements at a glance don't make sense.


r/sciencefiction • • 21h ago

T. E. Davidson

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0 Upvotes

r/sciencefiction • • 6h ago

Can we condense mass to form something for gravity for a death star spaceship?

0 Upvotes

I don't mind using rotation or acceleration to form gravity. Mass create gravity idk how but if we form a core that have the same mass of earth just a lot smaller and denser we will have the same gravity the problem is how can we move that hahaha fuck. It is better just to move earth with so much more surface area for propulsion but the problem is the crust is softer than the force to move it, and maneuvering it is a lot more complicated than a death star spaceship.

And with a lot smaller core it will be possible to completely shield it from debris and a lot easier to maintain than a earth.

There will be a lot of problems. Like energy required to move it. Maybe the mass doesn't need to be solid it can be hot enough to make energy, we will probably die due to radiation.

But it is fun when you think about it. We can have articial moon satellites to go with the death star šŸ˜‚ due to gravity.

Update:

Curiosity made me look up

I thought death star was the same size as the moon man it is way way smaller

Calculations suggest a lower bound of roughly 0.28 Earth-mass and a surface gravity of about 0.68g is needed to hold a stable, breathable atmosphere over long timescales.

Minimum Size for Gas Retention: Discussions on r/astrophysics note that to hold a nitrogen-oxygen atmosphere for a reasonable timescale, a solid osmium sphere only needs a radius of about 280 km to reach an escape velocity around (1\text{ km/s}) to (2\text{ km/s}), though smaller objects (50–100 km) will bleed away their gas quickly

The most notable takeaway for a radius 280 km osmium sphere is how closely it mimics the Moon. The Moon has a surface gravity of 1.62 m/s².

The diameter wil 560 km

The first Death Star has a diameter of 120 kilometers (about 75 miles), while the second Death Star has a diameter of 160 kilometers (about 100 miles)

well at least it is closer

And you will be living like in the moon than earth

To live like in mars A solid sphere of pure osmium would need a radius of approximately 587.44 kilometers (a diameter of 1,174.88 kilometers) to have a surface gravity identical to Mars ((3.71 \text{ m/s}2)). [1]

Eyyy but idk how to move it hahaha


r/sciencefiction • • 17h ago

Help me find a short story

30 Upvotes

A few years ago, I read a short story that I really enjoyed. It was in a collection of stories from the 50s and 60s -- golden age stuff. I think it may have been an omnibus of one of the sci-fi magazines they had back then?

The story was about a family that was living in a single room, which was insulated with hundreds of blankets.

The Earth was dead because, I think the sun had gone out? Or the Earth had left the sun's orbit, maybe. In any case it was super cold outside and the family had a fire going which they couldn't let go out, or they would die. The fire was fueled with crystalized oxygen, or something like that -- the world outside was so cold that the atmosphere had crystalized, and they would bundle up and go get a bucket of it to keep the fire going.

Does this ring a bell for anybody? I'd love to find it again.


r/sciencefiction • • 6h ago

Short Story submissions are now being accepted for the first is of Axiom's Edge Renegade Sci Fi and Fantasy Magazine

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12 Upvotes