Linked Questions

42
votes
7answers
10k views

What's the largest body in the solar system that you could destroy without endangering humanity?

You're an alien that really likes pyrotechnics. Nothing that goes boom on your home planet (in a safe and responsible manner) satisfies you any more. Why not blow up a planet and see what that's ...
37
votes
10answers
11k views

How can I destroy a gas giant planet?

We have already discussed how difficult it would be to blow up a planet like Earth, basically deciding that you can't do that with any reasonable amounts of energy. But what if I don't need to blow up ...
31
votes
6answers
3k views

On the immediate effects of a small, short term black hole

What immediate effects would a small, short-term black hole have if it appeared in a residential backyard? How small or short-lived would it have to be to be survivable, if it is survivable at all? ...
25
votes
12answers
9k views

Can planets die of old age

I was wondering if planets die after a certain amount of time, perhaps because of decay? If this is the case, how do they die and how long does it take? Do they implode? Explode or perhaps just fall ...
16
votes
8answers
4k views

Can we start a colony on a passing rogue planet?

A rocky planet, similar to Earth in mass and composition, is set to pass through the solar system in one year's time. It has frozen oceans of water ice and a thin atmosphere of unknown composition. It'...
10
votes
3answers
3k views

What would be the effect of a powerful explosive going off in the core of a planet?

What would happen if a powerful explosive went off in the core of a planet? On Earth, you have several layers of the planet, the crust, the magma, the outer core, and the inner core. Right now, human ...
10
votes
4answers
1k views

Size of the volcano that ends the world

One of the theories behind the extinction of the dinosaurs is the eruption of one or a series of volcanoes. Supposedly the ash expelled by these eruptions blocked out the sun, killing plants and thus ...
9
votes
5answers
2k views

How fast would a planet have to be spinning for the centrifugal/centripetal force to cancel out the force of gravity near the equator?

So, I know that on the planet earth, the force of gravity is actually slightly less nearer the equator, due to the Centrifugal Centripetal Spinny Force. Not by a whole lot, but by some small amount. ...
6
votes
1answer
1k views

Can we actually “blow up” the sea?

Reading questions of How much TNT needed to blow up Mount Everest and the Moon - and especially the comments below it, I have to ask it: Can we blow up the sea? Detonating atomic bomb undersea may ...
6
votes
2answers
563 views

The power of the Jupiter projectile

I recently re-watched an awesome show - Diebuster. At one point in the show, one of the characters uses Jupiter as a projectile, slamming it into one of the aliens, but to no avail. I can't find a ...
5
votes
4answers
715 views

How to fragment a moon to form a ring around a planet

Given a planet about the size of Earth, and a moon the Size of the Moon, how could one destroy the moon without flinging the fragments onto the surface of the planet or into outer space? How can one ...
5
votes
1answer
364 views

How hard is it to shatter the moon?

After seeing this question, I wondered what weapon of choice (and, logically, the grand scale of energy amount) is needed to shatter the moon. Let's take our moon, the Moon, the natural satellite of ...
4
votes
2answers
190 views

If a moon shattered into pieces, what would happen?

Say I have a planet with 10-20 moons of varying sizes orbiting it. If one of these moons were to explode/shatter into tiny pieces (I know this is probably impossible, but if we pretended it were ...
3
votes
5answers
565 views

Is it possible to create a bomb powerful enough to wipe out all life on the planet?

Would it be possible to create a bomb powerful enough to turn the entire planet into an inhospitable wasteland devoid of life, with technology available to us right now? Would this bomb be able to ...
3
votes
4answers
634 views

Can a planet destroy itself?

More often we have heard countless of familiar sci-fi scenario whereby the inhabitants of a dying planet faces world ending catastrophe most notable the superman origin. My question is can a planet ...
2
votes
8answers
13k views

How much antimatter would we need in order to wipe out all humans, eradicate all animals and blow up the Earth?

Supposing we had many thousands of antimatter bombs (they can be detonated in many different locations), how much total antimatter would we need in order to wipe out all humans on Earth? Supposing we ...
2
votes
3answers
377 views

Would it be possible to use antimatter confined by magnets as a bomb? What effect would this have on an Earthlike planet?

For my world, a planet sends a high amount of magnetically confined antimatter towards another planet the size of Earth and obliterates it. I'm wondering if this would be possible and what effect it ...
2
votes
2answers
293 views

How deep underground should a data center on Earth's moon be, to be comparably safe to one on Earth?

The singularity has occurred and it wants an off-site backup. How deep should we all bury the lunar datacenter to be comfortably safe from radiation, cosmic rays, etc., while not causing cave-ins and ...
1
vote
2answers
11k views

How much TNT do you need to blow up the moon? [closed]

How much TNT do you need to blow up the moon if you place it exactly in the middle? Just think of the explosion -- that there's no air in space doesn't matter! What do you think is it possible and ...
1
vote
2answers
4k views

Can we destroy the Sun? [duplicate]

The Sun is evil, we must destroy it by any means possible to us today! Can we destroy it? Or at least shorten it's lifespan.
1
vote
5answers
1k views

Can you destroy a planet by poking a hole in it?

Imagine you are an evil humanoid alien that wants to destroy Earth (or something awfully similar) for whatever reason. However as an alien, you do not possess any physical weapons. No laser guns. No ...
1
vote
1answer
467 views

How large would an impact have to be to destroy earth? [duplicate]

Supposing I had a planet the size of the earth, how much mass and how much velocity would an impacting body have to have to completely annihilate the planet? That it is to say that its reduced from a ...
0
votes
7answers
715 views

How to wipe out humanity within a week? [closed]

We are in a near-future Earth. Humanity does not have access to Antimatter bombs and I forbid nuclear war. What event could wipe out humanity within a week? Requirements This must not be ...
0
votes
0answers
129 views

How much force would be needed to split the moon in half? [duplicate]

I've always seen things in fiction and in the Quran where the moon was split in half. Then, it got me to thinking, how much force, if there is even a formula for this and if so point me in its ...