Largest Megastructures in Sci-Fi

[Evil Smurf]

I don't care what you say, I keep thinking deathstar. The deathstar can BLOW UP PLANETS!

and the ability to blow up planets is exactly proportional to how big a structure it is XD



((btw, Super Saiyan 3 Goku is the biggest megastructure ever guys cause he can blow up solar systems.)

how come it always sounds like a Super Saiyan constipation event when those guys fight? maybe that is how they get their power?

 

[Shoggoth2588]

-snip-

I was going to go with the Corellian System [http://starwars.wikia.com/wiki/Corellian_system] in the Star Wars EU, but the Hitchhiker's Guide one utterly trumps that. Fuck.

Only the Culture or something is going to beat that.

EDIT: GOT ONE! The Galaxy pendant in Men in Black!!
That's got a whole galaxy in it, so approximately 4.1x10^48 m^3. That's:

4,100,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000m^3

Your move

OK, Galaxy Pendant is one thing but remember how at the end of the movie it was revealed that Earth is in an Alien-Child's marble? Our entire universe is within that marble which is marble-sized to the alien kid playing with it. So my answer would be the planet on which that kid was playing marbles with our marble-verse. Check-and-mate

 

[Hawk of Battle]

Does the Eldar Webway count as a structure? I guess it should, because it was technically built, by re-structuring the chaotic parts of the warp into non-chaotic tunnels for walking through. And it's the size of the galaxy, connecting thousands (perhaps even millions) of planets together (kinda like the Magog Worldship).

 

[NortherWolf]

The Hub from Transformers, Generation 2 comics.
http://tfwiki.net/wiki/Hub_%28G2%29

 

[OneCatch]

-snip-

I was going to go with the Corellian System [http://starwars.wikia.com/wiki/Corellian_system] in the Star Wars EU, but the Hitchhiker's Guide one utterly trumps that. Fuck.

Only the Culture or something is going to beat that.

EDIT: GOT ONE! The Galaxy pendant in Men in Black!!
That's got a whole galaxy in it, so approximately 4.1x10^48 m^3. That's:

4,100,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000m^3

Your move

OK, Galaxy Pendant is one thing but remember how at the end of the movie it was revealed that Earth is in an Alien-Child's marble? Our entire universe is within that marble which is marble-sized to the alien kid playing with it. So my answer would be the planet on which that kid was playing marbles with our marble-verse. Check-and-mate

...
Well played, good sir

Though I did just remember 'The Way' from Greg Bear's Eon trilogy, which is near infinite. hur hur

 

[Zack Alklazaris]

Wouldn't it be a Dyson Sphere? I mean, stars are pretty big, and you'd have to build an enclosure around one...

We're already way beyond Dyson Sphere's my friend. Look at the above posts!

What about the Dyson Sphere in that episode of Star Trek: Next Generation?

It encased an entire star system. As in its middle would be the sun and its diameter would go beyond Neptune.

 

[OneCatch]

Wouldn't it be a Dyson Sphere? I mean, stars are pretty big, and you'd have to build an enclosure around one...

We're already way beyond Dyson Sphere's my friend. Look at the above posts!

What about the Dyson Sphere in that episode of Star Trek: Next Generation?

It encased an entire star system. As in its middle would be the sun and its diameter would go beyond Neptune.

Pretty big, but it's still gonna only be about 8 light hours across.

 

[Andy of Comix Inc]

Do 40k's Forge Worlds count? The planets themselves aren't so big but giant fucking factories planet-wide dedicated to making giant fucking weapons for giant fucking spacefleets in giant fucking numbers. That's a lot of giant fucking! ...gotta be worth a look-in, I'm sure.

 

[Benni88]

Nah, It's got to be the Ringworld from Larry Niven's book of the same name. Has an inner surface area thousands of times greater than a planet.

 

[Some_weirdGuy]

how come it always sounds like a Super Saiyan constipation event when those guys fight? maybe that is how they get their power?

Dude, yelling totally makes you get huge muscles. I was once yelling at this bird for taking a crap on my car and my shirt exploded from all the super powered muscles that I'd grown without noticing.

Was a really good shirt I ruined too...

 

[Albino Boo]

The place where they construct planets in The Hitchhiker's Guide To The Galaxy is 13 light seconds across, or 3,897,301,954 metres. Which would be... 190,870,132,282,126,866,381.2 m[sup]2[/sup]. So, roughly 190.87 quintillion m[sup]2[/sup].

Your move.

Technically speaking its not the biggest structure in the Hitchhiker's. Zarniwoop had a whole universe in his office. This lead in the radio series to the line "He's on an intergalactic cruise ... In his office". In the radio series it was a real universe but in the books it became an electronic one.

 

[smearyllama]

The Ringworld from Larry Niven's Ringworld might count.

Nah, It's got to be the Ringworld from Larry Niven's book of the same name. Has an inner surface area thousands of times greater than a planet.

Ninja'd. Damn.

 

[Aarquus]

The TARDIS. 'nuff said.

 

[cahtush]

Something from WH40K probably, everything there is oversized and overpowered.

 

[Redingold]

The place where they construct planets in The Hitchhiker's Guide To The Galaxy is 13 light seconds across, or 3,897,301,954 metres. Which would be... 190,870,132,282,126,866,381.2 m[sup]2[/sup]. So, roughly 190.87 quintillion m[sup]2[/sup].

Your move.

I was going to go with the Corellian System [http://starwars.wikia.com/wiki/Corellian_system] in the Star Wars EU, but the Hitchhiker's Guide one utterly trumps that. Fuck.

Only the Culture or something is going to beat that.

EDIT: GOT ONE! The Galaxy pendant in Men in Black!!
That's got a whole galaxy in it, so approximately 4.1x10^48 m^3. That's:

4,100,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000m^3

Your move

It clearly isn't that many meters at all. It is an entire galaxy in the size of a marble, so the galaxy is the size of the that marble.
I suppose that maybe the aliens playing with our galaxy at the end of the movie might count for something. Maybe the bag that they put it in?

It's that big if you're inside it - Ooooohh 'philosophising about perspective' time!

If you're going to use that logic, then I submit the Roundworld universe. It's about a foot across on the outside and the size of our universe on the inside, since it is our universe. See The Science of Discworld for more details.

 

[devilofthemist]

What about the mechs at the very end of Gurren Lagann? Weren't they throwing galaxies at each other?

throwing galaxies at eachother? god damn i don't normally watch mecha but i have to watch that

 

[Fractral]

No doubt, Bolder's Ring (or the Ring) from Xeelee Sequence. It's basically a ring over 10 million light years across in intergalactic space. Its rotation affected the motion of galaxies and its gravitational forces generated a portal to another universe.

If constructs made of cosmic strings don't count, then the largest megastructure is probably a Dyson shell.

Yeah the Bolder's ring is the one I was going to go with. I doubt there are structures larger then that except maybe something that the dark matter bird race that defeated the xeelee created.

Funny, thats what I was going to say as well. In the book Baxter uses it as the explanation for the 'great attractor' that has been hypothesised to exist. The xeelee used the gravitational force of it to their advantage, pulling all matter in the universe into it and so making it even bigger. Thats gotta trump anything in any other sci-fi universe.
I doubt that the birds made anything bigger, in the books their main objective seems to be to destroy big stars and other objects to create homes for themselves.

 

[Belaam]

Damn, Pratchett's Strata was ninja'd. ;p I think Brin had a similar concept wherein experiments with micro-black holes create new universes in new spacetimes with the question as to how many generations of universes exist.

For habitable constructions, gotta go with either Larry Niven's Ringworld, Roger McBride Allen's Dyson Sphere which contains various planets captured via wormhole, or one of David Brin's Dyson spheres.

edit: damn, forgot about Roundworld. Do universes created with magic count?

 

[omicron1]

I'm going to go with the Buuthandi:
A Dyson sphere (technically more a spherical solar sail) the size of a solar system. And there are (were) six of them. And technically they're linked to the galaxy-spanning wormgate system, so they're all part of one noncontinuous system. [http://schlockmercenary.wikia.com/wiki/Buuthandi]

 

[Xerosch]

And here I am, being foolishly impressed by the Megastructures in the manga 'Blame!'.

I mean, the structure got so big, most of the rooms' diameter is in miles and the constructers built in the moon on the side...