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/sci/ - Science & Math

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1867812 No.1867812 [Reply] [Original]

Is it possible for our civilization to move to another planet, such as Gliese 581c in the nearby years?
I'm mainly thinking about the distances because isn't Gliese 581c, for example, half a light year away?

>> No.1867818

I'm going to pull a number out of my ass but I'm pretty sure with current technology it would take thousands, probably hundreds of thousands of years to reach Gliese 581c. That type of space travel is just not feasible by current means.

>> No.1867819

http://www.charlespellegrino.com/propulsion.htm
http://www.thenanoage.com/

Read the part about the Asimov Array and nanomachines.

>> No.1867829

1. Nearby years, not these ones though.
2) wrong by a factor of 40; Gilese 581 is 20 light years away and the nearest star that isn't ours is 4 light years away

using ion thrusters we could probably have built a ship that would take about 2000 years by 2050

>> No.1867830

It's 20 light-years away, fag.
Even the closest star to us besides Sol is 4.2 light-years away.
You ain't goin' nowhere

>> No.1867832

The first step would be sending a robotic probe to that system. You don't want to send a bunch of humans into unknown territory that may or may not be habitable, and sending just a robot is a lot easier because you don't need a life support system.

>> No.1867861

>>1867832
What would be the point in sending a robot, it's not like it could communicate back.

>> No.1867872

>>1867812
You want to fuck up yet another planet with our civilization?

>> No.1867879

x40
its 20 light years away

>> No.1867880

>>1867861

Why couldn't it?

>> No.1867893

>>1867832

Oh robot! You always play the causality card...
Woudn't want it to take 2000+years to communicate.

>> No.1867896
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1867896

>>1867893


>> Wouldnt it take 2000 years to send a signal 20 light years?

>> mfw

>> No.1867910

>>1867896
>implying space is a vacum
>implying the signal wouldn't run in to stars without careful piloting
>implying

>> No.1867946

The fastest spacecraft propulsion we could build, and could've build 50 years ago is the nuclear pulse propulsion. http://en.wikipedia.org/wiki/Project_Orion_(nuclear_propulsion)

A spacecraft using nuclear pulse propulsion (with modern hydrogen bombs) would in theory, be able reach 20% of the speed of light at best (10% is probably closer to reality), which would make the journey to Gliese 581 last about a hundred years or more.

So it's definately not possible within near future, but it would still be possible, as with nuclear pulse propulsion, there would be almost no upper limit to size of the ship. A ship many times larger than Saturn V rocket with most of it's volume being usable space could be built and launched from earth (building stuff in orbit is thousands of times more expensive than on earth).

With our current level of technology, it's NOT going to be possible to migrate to any other solar system within near future, UNLESS major breakthroughs in physics (and applied physics) are made (FTL-drives bitch, we need them).

>> No.1867954

>>1867910

>> Signal run into stars
>> Implying space being a vacuum is anything to do with it.

You just went full retard son.

>> No.1867999

>>1867872

Hurr Durr Herp Derp

>> No.1868042

>>1867999
Exactly the answer I was expecting.