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-- A planetary system that may contain life has been found.
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Originally posted by StanVoid what about the beings already on that planet? are we just gonna evict them out of their apartments once we make our way over there? tell them to discover their own new planet? what if aliens show up tomorrow and tell us to haul ass

what if?

fuck, real interesting all of this. I didn't know the sun was the biggest of all.

http://www.cosmosmagazine.com/node/1566

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In the episode, Hawking arrives just in time to see the ensuing mayhem, and escapes with Lisa in tow, using a flying device attached to his wheelchair. Later, he is seen telling Homer over a beer, "Yourtheory of a doughnut-shaped universe is intriguing... I may have to steal it."

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Originally posted by StanVoid what about the beings already on that planet? are we just gonna evict them out of their apartments once we make our way over there? tell them to discover their own new planet? what if aliens show up tomorrow and tell us to haul ass

i highly doubt we would ever be able to reach it.

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Originally posted by Ted Promo fuck, real interesting all of this. I didn't know the sun was the biggest of all.

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Originally posted by Cloudburst but universe is infinite, so it would take infinite amount of time to make a full circle?

I'm not convinced that the universe is infinite... unimaginably vast, yes, but maybe not infinite. I mean for us it would appear so because we can't reach or see the edge... assuming if there is one. I think I heard somewhere that the universe may resemble something like a donut where space/time warps at the edges, hence bringing the "straight-line" traveler back to their point of origion.

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Originally posted by Ted Promo fuck, real interesting all of this. I didn't know the sun was the biggest of all.

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Originally posted by nrjizer Kind of, but not really. If you were to get in a car and just start driving in one direction without turning or changing course, you would eventually make full circle around the Earth and end up back where you started (let's just pretend here that oceans and other topographical obstacles didn't exist). To your perspective, it would seem as if you were just driving in a straight line the entire time. In reality, the shape of the Earth has brought you all the way back around. The effect is thought to be the same in the universe as a whole. If you just point in one direction and go, eventually you will be circled back around to where you began.

What? Who thinks this? As far as I know the universe is meant to be endless and never have I heard anyone mention that you could theoretically end up in the same spot

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Originally posted by Ted Promo fuck, real interesting all of this. I didn't know the sun was the biggest of all.

lol!

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Originally posted by Turbonium In a few thousand years, they're going to refer to these times as the "look but can't touch" age. We discover things, but can't do shit since we have no means of getting to them. And the few planets we do have access to, we just manage to crash probes into.

Unless String Theory is correct and we are able to effectively bend space time and take shortcuts (ie worm holes) to get from A to B so in essence you could appear to travel much faster than light when in reality you would be going slower, just taking a shorter route.

we are dead as fuck.

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Originally posted by chach

actually heard about that equation in my astro120 class back in college.

itw as on our final exam...and i had to explain all the parts of the equation. since they were all hypothetical, i made the final answer come out to exactly 1: us.

I heard on QI that the universe is supposed to be 'saddle-shaped' so I'm not sure if we could actually view ourselves or not. Maybe if light refracted in a certain way........ oh, I don't know.

Shouldn't Vulcan's find us FIRST?
Oh, we're still short of a warp drive, damn.

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Originally posted by Halcyon+On+On What if you consider that the Universe is both every shape, yet none of them? You are referring to space-time curvature, I assume, but what about the fact that red shift tells us some parts of the universe are expanding at faster-than-light speeds?

interesting. what does the red shift have to do with indicating that parts of the univers are expanding faster than the speed of light? Isn't it just to reinforce the fact that light travels at a finite but very fast speed and signify that whatever is producing it as a receeding source? Wouldn't the amount of Doppler shift be more signifcant in determining the speed of development if it is beyond the speed of light?

Oh, maybe. It's been some time since Astronomy. All I know is what the experts tell me!

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Originally posted by Halcyon+On+On Oh, maybe. It's been some time since Astronomy. All I know is what the experts tell me!

haha...dammit. i was actually looking for answers

any real astrophysicists out there? this shit is just my elective...lol

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Originally posted by Gypsy haha...dammit. i was actually looking for answers any real astrophysicists out there? this shit is just my elective...lol

Oh.

Well Doppler shift is just a variation on red shift/blue shift, I suppose. So no, it wouldn't necessarily be more effective since it's the same thing. As for how we know the universe is expanding [at parts] faster than the speed of light? Jesus, that was just something I had heard as a theory. I couldn't tell you.

http://en.wikipedia.org/wiki/Universe_expansion

Try that.

I'm confused. I thought NOTHING is supposed to travel faster than the speed of light. If this is the case, then how does to universe travel faster than the speed of light? I know that tachyons are supposed to theorectically travel faster than light, but it's a sub-atomic particle. The universe itself is mass and according to Einstein, mass cannot travel faster than light. Period. Light, or Photons, exist in a quantum state being both energy and mass, depending on whether or not it's state is in at time of observation. (Observing a photon chages it's state if my memory serves correctly). It is at the speed of light, but not faster.

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Originally posted by Gypsy interesting. what does the red shift have to do with indicating that parts of the univers are expanding faster than the speed of light? Isn't it just to reinforce the fact that light travels at a finite but very fast speed and signify that whatever is producing it as a receeding source? Wouldn't the amount of Doppler shift be more signifcant in determining the speed of development if it is beyond the speed of light?

the universe isnt expanding faster than the speed of light. the "red shift" denotes that galaxies are moving away from us.

AFAIK, this isn't the first planet they found which could have similar qualities to earth...

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Originally posted by echosystm AFAIK, this isn't the first planet they found which could have similar qualities to earth...

i read an article a couple of years ago that said they found a new planet about once ever 3-4 months.

it would well cool if we could meet other civilisations and it destroyed religious belief (both on their planet and ours).

but no, we'd just try to convert them to christianity

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Originally posted by Prometheus Xex I'm confused. I thought NOTHING is supposed to travel faster than the speed of light. If this is the case, then how does to universe travel faster than the speed of light?

"Some sources indicate that the big bang caused an expansion which traveled faster than the speed of light. How can this be?

You ask a good question, one whose answer lies in the subtle difference between expansion that is faster than the speed of light and the propagation of information that is faster than the speed of light. The latter is forbidden by fundamental physical laws, but the former is allowed; that is, as long as you are not transmitting any information (like a light pulse), you can make something happen at a speed that is faster than that of light. The expansion of the Universe is a "growth" of the spacetime itself; this spacetime may move faster than the speed of light relative to some other location, as long as the two locations can't communicate with each other (or, in terms of light rays, these two parts of the Universe can't see each other). According to the theory of inflation, the Universe grew by a factor of 10 to the sixtieth power in less than 10 to the negative thirty seconds, so the "edges" of the Universe were expanding away from each other faster than the speed of light; however, as long as those edges can't see each other (which is what we always assume), there is no physical law that forbids it."

http://curious.astro.cornell.edu/qu....php?number=387

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Originally posted by echosystm AFAIK, this isn't the first planet they found which could have similar qualities to earth...

I think the big deal is that this is the closest possibly-earth-like planet, not the first.

This is the thing that gets me about astrophysics, and why I don't believe much that they say.

They claim the universe is shaped. Ok, but whats around the shape. They claim that the universe is expanding, but into what? I reckon its basically a bunch of egg-heads in some nerdy pissing contest to find who can come up with the longest or most outlandish mathematical equation. The universe is infinite, theres no shape, theres no expansion, it just goes on and on. Unfortunately humans don't seem to be able to grasp the idea of infinite and like to quantify things and thats basically why religion came about, that we couldn't accept that things are infinite and random and there must be some higher power controlling it.

My opinion at least.

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Originally posted by MrJiveBoJingles "Some sources indicate that the big bang caused an expansion which traveled faster than the speed of light. How can this be? You ask a good question, one whose answer lies in the subtle difference between expansion that is faster than the speed of light and the propagation of information that is faster than the speed of light. The latter is forbidden by fundamental physical laws, but the former is allowed; that is, as long as you are not transmitting any information (like a light pulse), you can make something happen at a speed that is faster than that of light. The expansion of the Universe is a "growth" of the spacetime itself; this spacetime may move faster than the speed of light relative to some other location, as long as the two locations can't communicate with each other (or, in terms of light rays, these two parts of the Universe can't see each other). According to the theory of inflation, the Universe grew by a factor of 10 to the sixtieth power in less than 10 to the negative thirty seconds, so the "edges" of the Universe were expanding away from each other faster than the speed of light; however, as long as those edges can't see each other (which is what we always assume), there is no physical law that forbids it." http://curious.astro.cornell.edu/qu....php?number=387

um, yeah...that's um...like totally what i meant

something in my head hurts. i think its my brain.

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