Questions tagged [apocalypse]

For questions dealing with events during an apocalypse scenario. Do not use for post-apocalyptic settings.

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1answer
129 views

How long would it take for society to rebuild itself? [closed]

Humanity creates a new technology that discovers these strange crystals (on Earth) that produce a little bit of electricity. There's now a race for mining them, and the whole world is going crazy over ...
24
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10answers
12k views

Could human civilization live 150 years in a nuclear-powered aircraft carrier colony without resorting to mass killing/ cannibalism?

An un-treatable virus starts infecting and killing people. Societies are on the brink of collapse, and it is decided the best way to save the most amount of people is to move everyone who can fit into ...
3
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2answers
144 views

Deadly virus going extinct - “grey goo” a solution?

With the evolving global warming and thawing of permafrost, an ancient deadly virus begins to spread from Siberia across Eurasia, affecting domestic animals first and mutating quickly onto the rest of ...
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7answers
7k views

How large would a mega structure have to be to host 1 billion people indefinitely?

Ruins of buildings, abandoned cities and suburbs dot the coasts of Earth's landmasses, inhabited by wild animals and the pieces of a once vibrant civilization. The oceans are relatively empty, the ...
5
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3answers
235 views

Firearm ammunition surviving 200 years

OK - breakdown in society - economic apocalypse in 2030 - society breaks down and the supply chain of what we take for granted fails. 200 years later we have regressed to a technological period of ...
9
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9answers
577 views

How to destroy a galactic level civilization and still leave behind primitive survivors?

Basically, the problem is I want to leave behind isolated pockets of survivors. Also, I want these survivors to be a primitive culture - current real world level - compared to the original ...
3
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5answers
211 views

How to annihilate all life on a planet? [duplicate]

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6answers
1k views

Would the US government be able to hold control if all electronics were disabled for an indefinite amount of time? [closed]

In my story (modern fiction/ apocalyptic survival fiction) an enemy of the US sets up a EMP pulsing satellite over the continental US, and before we can respond all electronic systems are shut down. ...
6
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11answers
416 views

What type of natural or artificial disaster could devastate a multi galactic civilization?

There is an advanced civilization that spans multiple galaxies. The civilization has learned to tap every available source of energy within the volume that it has colonized. The civilization ...
7
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6answers
383 views

What survivable events would make Earth least inhabitable?

I am interested in events that would so radically change Earth (for the worse) that it would be near uninhabitable for humans. The event may or may not be deadly to humans, but the world it leaves ...
3
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2answers
152 views

Is it possible to engineer airborne Ebola?

In my world, a mad scientist wanted to end humanity and he was looking for something with a high mortality rate. He found Ebola. But it's not airborne though. Could it be possible to genetically ...
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5answers
196 views

A fast apocalypse with survivors, but very low chance of rebuilding [closed]

I need an event which could make the world go from "similar to today" to post-apocalyptic in one lifetime, preferably in 20-40 years. It needs to happen fast, because I want to focus the story on ...
12
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6answers
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What would happen to a modern skyscraper if it rains micro blackholes?

Set in present day New York City, an unknown spacecraft of alien origin expelled millions of micro blackholes each with the mass of a grape in the earth atmosphere. I like to know what happens if ...
14
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12answers
3k views

Little known, relatively unlikely, but scientifically plausible, apocalyptic (or near apocalyptic) events [closed]

We know the common tropes for an apocalyptic event: meteor/asteroid hits earth; crazy infectious virus/bacteria; AI takes over; we nuke ourselves; climate change; hostile aliens. But what are some ...
15
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4answers
305 views

Can I X-Ray a civilisation to death?

Something in orbit around an inhabited planet blasts it with a hefty dose of gamma rays/x-rays/something else, killing everyone within a relatively short time frame (hours or days) but leaving no ...
25
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17answers
7k views

Need a specific event that wrecks the surface, allows the race to survive in bunkers, and affords an aftermath suitable for them to rebuild

One rule: it cannot be caused by aliens or AI invading the planet. But it is okay if an alien race causes the destruction in any other way. It's an Earth-like planet. I need the effects of the ...
2
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2answers
203 views

What would annihilate life on a planet but allow it to be habitable 1-10 years later? [duplicate]

I'm writing a fantasy/sci-fi story. Imagine an alien race, about as advanced as any sci-fi alien race has ever been depicted in any REALISTIC medium. They're gonna target an earth-like planet. I need ...
2
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2answers
123 views

Apocalypse by Atomic Catalyst

This question is a continuation of Unprepared and Without a Homeworld. The premise of this idea is that a substance called an Atomic Catalyst exists that can lower the temperature at which particles ...
15
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20answers
3k views

How could a plague that killed off the dinosaurs come back?

In my story, something pretty insane happens during the 3rd season. The common conception was that an asteroid strike contributed to the extinction to dinosaurs, but unbeknownst to all it was not a ...
15
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3answers
2k views

Plastic and oil eating microbes apocalypse part 1 - How fast can they spread?

Plastic is a huge problem in our lives. One of the ideas is to engineer plastic eating bacteria or fungi. Experiments already begun, and accidents already happen: a team of international scientists ...
19
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5answers
7k views

How long could a nuclear warhead remain functioning underground?

So, in my world, a nuclear war engulfed the Earth in the autumn of 1962. It is now the year 2568. In my story, a cult of mutants known as “The Followers Of Uranius” have sprung up in Kansas City. ...
2
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5answers
351 views

With an impending cataclysmic event, when would the economy break down?

Motivational musings: If there was an impending, unavoidable, and universally accepted cataclysmic event that will absolutely destroy everything, how long would it take for the economy to break down? ...
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5answers
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How many horses would be required to pull a modern Caravan

I'm currently investigating a post-apocalyptic novel and wished to know if Horses could be used to pull a modern Caravan and if so how many. Furthermore what would the potential daily range of such a ...
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2answers
148 views

If extra dimensional beings came to Earth- how many beings and how long to disrupts all major civilisations on Earth [closed]

Extra-dimensional beings are the same size and speed as human (fast walking). They walk in random direction- they have no idea that they came to Earth (accident on their world) and arrived at random ...
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12answers
8k views

Why would the tribes choose herding instead of agriculture in the Great Plains?

So, in my story, the entire world has just gone to absolute crap. The largest war in human history, WW3 in October 1962, has just caused destruction in most of the United States, the Soviet Union, ...
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2answers
259 views

How to start a giant war that no one can stop? [closed]

I want to create a giant war, called the 10,000 War. This war becomes so big entire civilizations get wiped out, and no one can stop it, though everyone wants to. The war cumulated to become bigger ...
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1answer
64 views

Planet Size Disaster [closed]

What kind of disaster could be large enough to wipe out an entire planets life and leave it like a complete wasteland, similar environment to what Mars is? Nuclear warfare or meteors are what I have ...
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18answers
3k views

Worse than zombies, part 1 [closed]

At university my peer group started to use the saying "it could be worse, there could be zombies" as a way to tell people to keep things in perspective. The statement always implied two things: ...
6
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17answers
705 views

How could aliens exterminate the human race while leaving the Earth unharmed?

Imagine an alien race that's advanced enough to wipe out humanity. They are here and they want Earth. They know we are not gonna let it go easy 'cause they've studied us for decades. Their motivation ...
0
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2answers
240 views

What would happen to Earth's climate and sky if the ozone layer was completely distroyed? [closed]

It would be very interesting to have sci-fi stuff showing our planet lacking the ozone layer due to deterioration of biodiversity and pollution. I read that Earth could not have life if there wasn't ...
0
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3answers
231 views

How could a real world doomsday cult go about causing the apocalypse? [closed]

This is not a fantasy or sci-fi scenario. This is about a doomsday cult terrorist organisation, akin to Aum Shinrikyo, in the present-day real world. Is there any way that such an organisation with ...
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2answers
195 views

What materials would be needed to build a homemade spaceship, in the apocalypse?

So, out in Kansas, in the DEC Oil Refinery, a group of people, called simply the Disciples, have set up a community. From the outside, it seems like a utopia, one where man and mutant get along ...
3
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5answers
314 views

How could the Girl Scouts prove that Twinkies will trigger the zombie apocalypse?

Dear Journal, I spent the morning planning on telling you about how Teresa MacPherson tried to steal Larry away from me and then how much fun last night's camp with the troop was... but I just ...
7
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2answers
725 views

Would an earlier HIV pandemic be a realistic, plausible historical apocalypse scenario?

The most recent common ancestor of the HIV-1 M group, responsible for the HIV pandemic, dates back to the Belgian Congo city of Léopoldville (modern Kinshasa), circa 1910. And the genetic history of ...
24
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10answers
6k views

How much time does Earth need to repel interstellar attack?

Highly inspired by How would we fare against an interstellar RKKV Attack? Lets repeat the setup of the original question: In this hypothetical scenario, in the present day, astronomers detect an ...
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9answers
3k views

Massive Meteor Net?

Premise Suppose a world has no other means to deal with a potentially devastating meteor impact than creating a net on the planet. Their hope is that the massive net will catch the meteor and slow it ...
14
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5answers
2k views

How would we fare against an interstellar RKKV Attack? [closed]

In this hypothetical scenario, in the present day, astronomers detect an object entering the heliosphere, at a distance of roughly 90AU, from the direction of the Proxima Centauri system. Observations ...
19
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9answers
2k views

Can a 3-laws compliant robot create a non-3-law compliant robot? [closed]

It seems to me that Asimov's three laws of robotics tell a robot what it is not allowed to do, but does very little to limit what it can do outside of the limits established by those rules. If we ...
6
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9answers
416 views

Oh crap, it’s 2020ad, and the Earth is about to explode! Can we make it to the stars?

Okay, not literally Krypton style, but let's say some local astronomical event is going to render every rocky surface in our solar system totally uninhabitable. Details aren't terribly important, so ...
4
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3answers
97 views

Would a sun-blocking asteriod field be created if something big was to smash into the moon?

I'm wondering if it is plausible that a large asteroid (interstellar in origin? Or, perhaps launched from the Kuiper Belt by something big with a lot of gravity?) would be able to smash into Luna and ...
5
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3answers
415 views

Designing the fallout shelter: Exits

Watching TV series The 100 reminded me of one huge flaw of Fallout shelters. (Spoiler ahead, I think?) Most of the bunkers depicted in popular works have one huge design flaw: There is only one ...
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2answers
121 views

How to not get killed while in an enemy country? [closed]

So, on a prototype deep sea submarine, a group of soldiers (sailors?) are on a mission to test out the new craft, when a nuclear war breaks out between two superpowers. They are out in the middle of ...
0
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1answer
129 views

How to survive out in Siberia, indefinitely?

In my story there is a worldwide apocalyptic disaster around the 2060s. And using helicopters, the Soviet Union’s most important military officials and political leaders and scientists, along with ...
2
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3answers
188 views

Could I EMP most of Earth using nuclear weapons without damaging it otherwise?

Let's say you have the entirety of Earth's nuclear stockpile at your disposal (you don't have to use it all, and if you need it there's an infinite supply of extra ICBMs) and that every weapon you ...
8
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3answers
2k views

A ravine ~15 miles (~ 24 km) deep on average opens up in the Himalayas. Do we survive?

A ravine the size of the Mediterranean in area and ~15 miles (~ 24 km) deep on average opens up over the course of a few days in the Himalayas. A size comparison of the Mediterranean Sea to the U.S. ...
7
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4answers
418 views

What modifications would be needed to turn an oil rig into a self sustaining base?

A secret enclave of sorts wants to survive a nuclear war, which they know is inevitable. They plan on riding out the apocalypse on an oil rig, 175 miles off the California coast out in the Pacific. ...
2
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2answers
178 views

Plausible reason for why the government isn’t present

In early May 2068, the USA and USSR go head off in nuclear war, and both countries, and the rest of the world, were completely devastated. In the US, the bombs ranged from smaller 100 kiloton bombs to ...
2
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6answers
487 views

How to prevent Wikipedia's desire for donations in Bitcoins from enslaving the world

In honor of the 2 year 4 month aniversary of Tim B's infamous How would Facebook Sysadmins prevent the summoning of Cthulhu?... ST. PETERSBURG, FLORIDA, UNITED STATES, December 17, 2019 The ...
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13answers
5k views

How do genetically modified rodents cause the apocalypse?

The creatures escaped. We selected them to breed fast. Perhaps too fast. The customers were always hungry for the newest model. At first, it was just small beasts. Dog-sized. The kind a child ...
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1answer
200 views

Ragnarök, and how to stop it, even when it's destined to happen [closed]

This is a really tought question, in the world I'm building there is a destined event. It's called Ragnarök, Darkest Night, the Apocalypse and Amargadon. This event is destined to happen. This event ...