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Old 08-24-2007, 06:48 PM   #21
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Quote:
Originally posted by Slipstream
In case anyone didn't know, Google Earth just came out with an update that has a new feature called Sky. Instead of looking at the Earth you can now zoom into outer space and surf the heavens! It's really cool.

http://earth.google.com/sky/skyedu.html
Awesome, I hadn't heard!

Is there anything cooler on the Internet than Google Earth?!

I'm gonna go look for life on other planets!
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Old 08-24-2007, 06:51 PM   #22
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I don't like to think about it. My brain ends up hurting.
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Old 08-24-2007, 06:53 PM   #23
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I've always loved Astronomy! at least ever since I studied about red giants, white dwarfs, black holes and so on in 10th grade. Was kinda thinking at some point about how it would be as a career option, but wasn't sure if there were enough opportunities in such a heavily research oriented field! Plus it would have been heavy on Physics, a subject which is okay but not one of my strengths!
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Old 08-24-2007, 06:55 PM   #24
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Quote:
Originally posted by unico
One of my goals in life is to see Aurora Borealis
Same.


Road trip in order?
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Old 08-24-2007, 07:35 PM   #25
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sorry, i couldn't help myself

Whenever life gets you down, Mrs. Brown, and things seem hard
or tough.
and people are stupid, obnoxious or daft,
and you feel that you've had quite enouuuuuuuuugh...

Just
re-
member that your standing on a planet that's evolving,
and revolving at nine hundred miles an hour...
That's orbiting at ninety miles a second, so it's reckoned,
the sun that is the source of all our power.
The sun and you and me, and all the stars that we can see,
are moving at a million miles a day.
in an outer spiral-arm at forty thousand miles an hour
of the galaxy we call the Milky Way.

Our galaxy itself contains a hundred billion stars,
it's a hundred thousand lightyears side to side.
It bulges in the middle, sixteen thousand lightyears thick,
but out by us it's just three thousand lightyears wide.
We're thirty thousand lightyears from galactic central point,
we go 'round every two hundred million years.
And our galaxy is only one of millions of billions,
in this amazing and expanding universe.

The universe itself keeps on expanding and expanding,
in all of the directions it can whiz.
As fast as it can go, that's the speed of light you know;
twelve million miles a minute, that's the fastest speed there is.
So remember when your feeling very small and insecure,
how amazingly unlikely is your birth,
and pray that there's intelligent life somewhere up in space,
'cause there's bugger-all down here on earth!
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Old 08-24-2007, 08:29 PM   #26
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Quote:
Originally posted by unico
One of my goals in life is to see Aurora Borealis
Aurora Borealis. Aurora Borealis!
At this time of day.
At this time of year.
Localised entirely within your kitchen.
Yes!
May I see it?
No.





No it's good to see people are interested in it. It does make your head hurt though. Black holes I find very interesting. Did they find one at the centre or something someone said earlier?

Apparently when black holes and white holes join they create 'wormholes' which are apparently the key to time travel.
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Old 08-24-2007, 09:01 PM   #27
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They found a large region of space that is devoid of matter, that is an anomaly, the things that can blow old theories to hell and drive the investigations that lead to new ones.

I'm just primed for New Horizons to visit pluto, see you 2015 folks.
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Old 08-24-2007, 10:09 PM   #28
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Quote:
Originally posted by U2democrat


Same.


Road trip in order?

YES!!!
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Old 08-25-2007, 02:11 AM   #29
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Quote:
Originally posted by A_Wanderer
They found a large region of space that is devoid of matter, that is an anomaly, the things that can blow old theories to hell and drive the investigations that lead to new ones.

Wow!! So they assume its a supermassive black hole?
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Old 08-25-2007, 04:25 AM   #30
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Old 08-25-2007, 06:00 AM   #31
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Quote:
Originally posted by COBL_04


Wow!! So they assume its a supermassive black hole?

No, it's actually nothing. A great big nothing.
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Old 08-25-2007, 09:42 AM   #32
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I always get sucked into those universe shows on the Science Channel. And I was like when this astrophysicist was on the Daily Show a couple of weeks ago talking about theories about the earth being seeded by Mars and how bacteria and stuff can travel from one planet to another when, say, an asteroid hits it or something.
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Old 08-25-2007, 10:42 AM   #33
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Quote:
Originally posted by deep
I recently watched a BBC science program
and the multi verse theory makes the most sense

also the brane (as in membrane) theories may be in the right direction

the big bang suggest something from nothing

more likely two branes colliding that spewed out what we call our universe
Some people might come away with "something from nothing," but that's not really the case, is it? In this case, you've got "something" from the "collision of two branes," in this theory. And if string theory is even remotely on the right track, it would imply that things exist outside of our 4D (height, width, depth, time) view of the universe in other dimensions that most of us cannot fathom.

So then the question arises as to "what created the branes," which you can think about scientifically or theologically, if one prefers. It all tends to imply that "Big Bang" wasn't really "the beginning of everything"; it was just part of a longer and larger process.

Unfortunately, I fear that, someday, we're going to reach the point of "scientific pre-history," where there will be nothing that we can observe and our questions will be forever unanswered beyond theoretical physics. Still, it's probably better than nothing at all.
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Old 08-25-2007, 10:54 AM   #34
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Quote:
Originally posted by Vincent Vega
No, it's actually nothing. A great big nothing.
The scientific term is "void," which is basically defined as the space between filaments, which are structures made out of superclusters of galaxies.

Here's a diagram that should make some sense out of this:

http://pil.phys.uniroma1.it/twiki/bi...laxyStructures

These voids are formed because even galaxies prefer to group together, and gravity, over many billions of years, will create larger, denser filaments, and, by extension, larger voids created by their absence.

If I had to guess what's confounding scientists right now, it's the fact that this void is considerably larger than what previous models predicted, due to the assumption that the universe is not old enough to create them. That's what makes this particular "supervoid" so fascinating, I believe.
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Old 08-25-2007, 12:40 PM   #35
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Quote:
Originally posted by Slipstream
In case anyone didn't know, Google Earth just came out with an update that has a new feature called Sky. Instead of looking at the Earth you can now zoom into outer space and surf the heavens! It's really cool.

http://earth.google.com/sky/skyedu.html
I just heard about this yesterday...sounds great.

My best friend is an astrophysicist. I'm always driving him crazy with questions, and I can never really remember all the answers! That's when I ask again.

Space is so compelling...I could stare at the sky for hours on a clear night. If I ever build a house, I'd like to design a room with a domed skylight, so I could just look right out while listening to music. A heavenly combination!
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Old 08-25-2007, 02:15 PM   #36
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Thanks melon. We just call it a "hole" in German.
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Old 08-25-2007, 02:54 PM   #37
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Quote:
Originally posted by melon


Some people might come away with "something from nothing," but that's not really the case, is it? In this case, you've got "something" from the "collision of two branes," in this theory. And if string theory is even remotely on the right track, it would imply that things exist outside of our 4D (height, width, depth, time) view of the universe in other dimensions that most of us cannot fathom.

So then the question arises as to "what created the branes," which you can think about scientifically or theologically, if one prefers. It all tends to imply that "Big Bang" wasn't really "the beginning of everything"; it was just part of a longer and larger process.

Unfortunately, I fear that, someday, we're going to reach the point of "scientific pre-history," where there will be nothing that we can observe and our questions will be forever unanswered beyond theoretical physics. Still, it's probably better than nothing at all.
Why fear? we already have the cosmic dark age.
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Old 08-26-2007, 02:34 AM   #38
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Quote:
Originally posted by melon


The scientific term is "void," which is basically defined as the space between filaments, which are structures made out of superclusters of galaxies.

Here's a diagram that should make some sense out of this:

http://pil.phys.uniroma1.it/twiki/bi...laxyStructures

These voids are formed because even galaxies prefer to group together, and gravity, over many billions of years, will create larger, denser filaments, and, by extension, larger voids created by their absence.

If I had to guess what's confounding scientists right now, it's the fact that this void is considerably larger than what previous models predicted, due to the assumption that the universe is not old enough to create them. That's what makes this particular "supervoid" so fascinating, I believe.

So is it just made of dark matter then?
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Old 08-26-2007, 02:41 AM   #39
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Dark matter has mass, and gravitational effects,.

http://www.nrao.edu/pr/2007/coldspot/
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Old 08-26-2007, 03:30 AM   #40
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Wow! So it is quite literally 'nothing', yet it is huge and is actually eliminating nearby galaxies. How interesting!
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