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Questions tagged [apocalypse]

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

24
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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
votes
2answers
174 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
107 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
votes
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
333 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? ...
8
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5answers
2k views

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 ...
-8
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2answers
136 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 ...
34
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12answers
7k 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, ...
-4
votes
2answers
249 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 ...
-2
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1answer
61 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 ...
16
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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: ...
5
votes
15answers
496 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
votes
2answers
176 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
votes
3answers
207 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 ...
-1
votes
2answers
169 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
votes
5answers
301 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
votes
2answers
487 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
votes
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 ...
11
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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
1k 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 ...
18
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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
votes
9answers
389 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
votes
3answers
95 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
384 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 ...
-2
votes
2answers
119 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
votes
1answer
122 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
votes
3answers
178 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
votes
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
votes
4answers
403 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
votes
2answers
173 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 ...
3
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6answers
461 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 ...
25
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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 ...
-2
votes
1answer
194 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 ...
7
votes
3answers
178 views

Effects of a supermassive ship colliding with a planet

The basis of my story revolves around a single survivor escaping a massive colony ship gone critical above the skies of an alien world. After his escape via escape pod, the ship crashes halfway across ...
6
votes
17answers
2k views

Human caused apocalypse other than nuclear winter or climate change [duplicate]

I am writing a post apocalyptic story in which a large amount of the foliage is dead and agriculture has become much more difficult. My original idea was to say that this was caused by an ancient ...
3
votes
4answers
161 views

If the world were blown to pieces, what would remain?

My question involves the earth being blown up using theoretical dark energy. In this scenario, the crust and mantle are destroyed by precisely placed weapons so that all that remains is the core. ...
4
votes
4answers
211 views

How long would it take humanity to create a supervirus?

So, I'm planning on running a RPG based in an apocalyptic world. The world will function basically equivalent to our own, except that sometime in the future, humanity created a superpowerful virus, ...
-2
votes
4answers
139 views

Effective orbital death platforms? [closed]

So I have this secret organization that needs to eliminate most of the humans on Earth. They have designed bunkers to save the right amount of people, but in order to start over they need to remove ...
8
votes
5answers
325 views

How can a pre-modern culture survive a sustained invasion accompanied by epidemics?

Assume the following situation: A pre-modern culture A exists on continent/island X with no previous contact with culture B (the invaders). Culture B discovers and invades X and the lands of A intend ...
1
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2answers
453 views

How does life recover after a nuclear war? [closed]

Let's suppose that on a planet the intelligent beings started a nuclear war and destroyed most of the surface of the planet. Now, the intelligent beings are all extinct. Assuming this were an earth-...
59
votes
25answers
14k views

The land grows evil and corrupted … but why?

BACKGROUND A corruption has seized hold of the land, turning great swathes of it into a poisonous waste that humans may only enter at their peril. Perhaps all who enter the waste grow sick or go mad, ...
5
votes
2answers
841 views

What if a traversable wormhole hits the earth?

So, I the question of what if a black hole hits the earth has been asked to death by various people, but what if the somewhat tamer wormhole hits the Earth? In particular, we'll say that one mouth is ...
6
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7answers
1k views

Would any long-range communication exist if all buildings were destroyed?

In a hypothetical situation where ALL man-made structures on earth are destroyed (including servers, cell towers, radio antennas, etc.) but anything existing underground or in space (satellites) would ...
2
votes
4answers
340 views

What could be an event which would wipe out most life on Earth and cause massive changes to Earth's ecology, but which humans can survive in bunkers?

So as the title describes, I need an apocalyptic event which is survivable by cryogenically preserved humans in hermetically sealed bunkers underground (or somewhere else). This event should wipe out ...
1
vote
2answers
89 views

What would be the problems society would face during a fantasy end of days scenario? [closed]

Context: all the myths of gods, demons, devils, angels and other creatures are true and have re-emerged for an all-out war between each other. Humans have been caught in the crossfire and our ...
0
votes
1answer
130 views

What (and how long) would it take for all the water from a Great Flood to go away? How much would such an event shape the geography of the world?

Many worlds have an apocalyptic/cataclysmic event. If mine is a Great Flood, how long would it take for much of the world to be habitable land again? Keep in mind, by the events of the present, the ...
5
votes
1answer
148 views

Aquiring caffeine after the apocalypse?

The world is mostly safe now, but everything has been scavenged from the old world. I live where winter always reached -20F or lower outside. Our colony has a hundred people and a few working ...
1
vote
3answers
149 views

Is there dry land on Earth if the moon orbits just above its Roche limit?

Imagine an Earth-like world in all respects except that the Moon is much much closer. I think I’m right to say if the Moon were very close that tidal forces would slowly rob it of momentum and it ...