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Samweis Gamdschie
Cream of the Crop
Joined: Tue Oct 12, 2004 2:35 pm Posts: 2077 Location: At the edge of reality
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Wed Feb 23, 2005 9:17 pm |
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Eagle
Site Owner
Joined: Wed Sep 15, 2004 1:09 pm Posts: 14631 Location: Pittsburgh
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Code: This artist concept illustrates how a massive collision of objects perhaps as large as the planet Pluto smashed together to create the dust ring around the nearby star Vega. New observations from NASA's Spitzer Space Telescope indicate the collision took place within the last one million years.
Astronomers think that embryonic planets smashed together, shattered into pieces, and repeatedly crashed into other fragments to create ever finer debris.
Tell me that Image isn't bad ass!
Did you all know that the most accepted theory on how planets formed goes something like this ....
After the big bang ... tons of debris and dust and gas were floating around the universe. Stars everywhere began to ignite, and when they would, they would send a sort of solar pulse out, throwing debris away as they ignited. These small small mollecules would collide and collide until they formed tiny specs, which continued to collide until forming rocks and so on. As the Gravitational pull grew stronger, more and more of them came together. Remember now, these molecules were all extremely hot and melted together almost instantly. Thus why the cores of our planets are molten lava and only the crust or mantle is solid!
So they continued to come together and crash about, the larger they grew, the larger the impacts became. That is why some planets rotate backwards, because the force of some previous impact was so powerful it reversed the spin of the planet. Some say that moons on most planets are just Debris left over from Impacts that got caught in the gravitational feilds.
But hey, who really knows. I wasn't even born yet :wink:
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Tue Mar 01, 2005 10:45 am |
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Jeff
Christian's #1 Fan
Joined: Sat Oct 23, 2004 8:25 pm Posts: 28110 Location: Awaiting my fate
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Sounds like a stretch to me. But what do I know?
_________________ See above.
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Tue Mar 01, 2005 10:49 am |
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Eagle
Site Owner
Joined: Wed Sep 15, 2004 1:09 pm Posts: 14631 Location: Pittsburgh
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Nope .. no stretch .. all a part of the big bang theory!
Size of a tennis ball ... everything within a tennis ball.
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Tue Mar 01, 2005 11:06 am |
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Eagle
Site Owner
Joined: Wed Sep 15, 2004 1:09 pm Posts: 14631 Location: Pittsburgh
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Code: Celebrating one year since the launch of NASA's Galaxy Evolution Explorer (GALEX), this image of M81 and M82, a pair of galaxies 10 million light-years away, illustrates the satellite's unique window on the universe.
The great spiral of M81, similar in size and brightness to our Milky Way, is in the lower half of the image. The stars in its spiral arms have formed within the last 100 million years, as have most of the stars in the nearby dwarf galaxy. GALEX reveals that star formation is occurring quite distant from the nucleus of M81. The nucleus, or center, of M81 shines from the light of 10-billion year old stars near the end of their lives, which produce their energy by burning helium into carbon.
The upper half of the image shows the remarkable star-forming galaxy M82. Star formation is so violent in this galaxy (viewed from its side) that gas and dust is being expelled perpendicular to its disc. Once thought to be an exploding galaxy, the flows are caused by the supernova explosions from the young stars in this galaxy.
Photo Credit: NASA
An amazing look at one of the closest galexies to our own.
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Tue Mar 01, 2005 12:16 pm |
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Eagle
Site Owner
Joined: Wed Sep 15, 2004 1:09 pm Posts: 14631 Location: Pittsburgh
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Code: The illustration above depicts a supermassive black hole ripping apart a star and consuming a portion of it, a long-predicted astronomical event confirmed by NASA's Chandra and the European Space Agency's XMM-Newton X-ray Observatories.
Astronomers believe a doomed star came too close to a giant black hole after being thrown off course by a close encounter with another star. As it neared the enormous gravity of the black hole, the star was stretched by tidal forces until it was torn apart. This discovery provides crucial information about how these black holes grow and affect surrounding stars and gas.
Illustration: NASA/CXC/M.Weiss
Ahh black holes ... one of the biggest mysteries of the universe. What in the hell are they, how are they formed, and what do they do!
Noone knows for sure, so lets just call them Langoliers.
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Tue Mar 01, 2005 12:21 pm |
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bABA
Commander and Chef
Joined: Mon Oct 11, 2004 12:56 am Posts: 30505 Location: Tonight ... YOU!
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Theres more talk now of water on Mars.
You know, this is something I've never understood though.
Scientests believe that in the unknown, the environment required for life to exist must match our own. I think this should always be considered a false assumption. Because then you're limiting yourself to concluding that life can only exist the way we see it. Its a good approach for colonizing other worlds yes but not for seeking out life or existance of life
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Tue Mar 01, 2005 12:27 pm |
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Eagle
Site Owner
Joined: Wed Sep 15, 2004 1:09 pm Posts: 14631 Location: Pittsburgh
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bABA wrote: Theres more talk now of water on Mars.
You know, this is something I've never understood though. Scientests believe that in the unknown, the environment required for life to exist must match our own. I think this should always be considered a false assumption. Because then you're limiting yourself to concluding that life can only exist the way we see it. Its a good approach for colonizing other worlds yes but not for seeking out life or existance of life
Not true, not true.
They would never limit themselves in that way. However ... they also have to go by the principles they have established, much as 1+1 in math equals 2.
In life there are various things that there MUST be to establish life. They vary and contain many things, including some sort of protection from UV light.
Mar's at some point deffinatly was a host for water. Water which is now all but gone, the only remnants left being in the frozen form.
As for life on mars ... Europe is pushing already for a new mission to Mars to get more samples (I think from the north pole where the Ice Sea is?) ... I guess there are exceedingly high levels of methane, something made by living organisms, and they can find no other reason for it being there other than life. Bactierial life of course ... but that is where we are thought to have started.
YOUR ALL JUST A GRAIN OF SAND. HAHA!
Ahem.
Anyways .... The universe is a big and amazing place ... it is the final frontier.
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Tue Mar 01, 2005 12:41 pm |
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bABA
Commander and Chef
Joined: Mon Oct 11, 2004 12:56 am Posts: 30505 Location: Tonight ... YOU!
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you forget parrelel universes.. I've heard if you reach the edge, you can deposit a coin and wave at the people on the other side.
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Tue Mar 01, 2005 12:51 pm |
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Eagle
Site Owner
Joined: Wed Sep 15, 2004 1:09 pm Posts: 14631 Location: Pittsburgh
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This is the thing we just sent into space ... it costs about 400 million dollars or more, and we are going to drive it into a comet. Sounds fun!
They are going to try and 'dent' a comet so that they can get a sample of its core. They also hope to learn more about how the impact effects the comet incase we ever have one coming right at us.
The comet and 'deep impact' space craft, as it is being called, are set to meet in July .... get ready for the fireworks!
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Tue Mar 01, 2005 12:56 pm |
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Jeff
Christian's #1 Fan
Joined: Sat Oct 23, 2004 8:25 pm Posts: 28110 Location: Awaiting my fate
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Eagle wrote: Nope .. no stretch .. all a part of the big bang theory!
Size of a tennis ball ... everything within a tennis ball.
If you believe that is actually possible.
But to prevent this from spiraling into a religious debate I'll agree to disagree.
_________________ See above.
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Tue Mar 01, 2005 11:54 pm |
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Jeff
Christian's #1 Fan
Joined: Sat Oct 23, 2004 8:25 pm Posts: 28110 Location: Awaiting my fate
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Eagle wrote:  Code: The illustration above depicts a supermassive black hole ripping apart a star and consuming a portion of it, a long-predicted astronomical event confirmed by NASA's Chandra and the European Space Agency's XMM-Newton X-ray Observatories.
Astronomers believe a doomed star came too close to a giant black hole after being thrown off course by a close encounter with another star. As it neared the enormous gravity of the black hole, the star was stretched by tidal forces until it was torn apart. This discovery provides crucial information about how these black holes grow and affect surrounding stars and gas.
Illustration: NASA/CXC/M.Weiss Ahh black holes ... one of the biggest mysteries of the universe. What in the hell are they, how are they formed, and what do they do! Noone knows for sure, so lets just call them Langoliers.
The one thing I always found fascinating about black holes is that they are impossible to prove they exist. We think they exist, we can see their effects but we can't actually prove that it exists.
_________________ See above.
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Tue Mar 01, 2005 11:55 pm |
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Terminator1997
George A. Romero
Joined: Mon Oct 11, 2004 10:30 pm Posts: 9773 Location: Enjoying a cold pint
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i can't wait to see some close up pictures of pluto and it's moon charon. i've been fascinated with outer space since i was a kid and have always wanted to see pluto close up. all they have now are a few grainy images from the hubble space telescope.
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Tue Mar 01, 2005 11:58 pm |
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Eagle
Site Owner
Joined: Wed Sep 15, 2004 1:09 pm Posts: 14631 Location: Pittsburgh
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Pluto! In all its boring rocky greatness! It isn't a real picture, but this is about what you can expect from Pluto ...
The only real image of pluto is this:
Not too much longer. 'Pluto Express' should be there around what? 2006? I know it launched in 2001, should be there soon.
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Wed Mar 02, 2005 4:00 am |
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Terminator1997
George A. Romero
Joined: Mon Oct 11, 2004 10:30 pm Posts: 9773 Location: Enjoying a cold pint
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Eagle wrote:  Pluto! In all its boring rocky greatness! It isn't a real picture, but this is about what you can expect from Pluto ... The only real image of pluto is this:  Not too much longer. 'Pluto Express' should be there around what? 2006? I know it launched in 2001, should be there soon.
yeah, pluto won't be anything amazing to look at, i just think it will be cool to finally have close up pictures of all 9 planets. that is, if you even consider pluto a planet.
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Wed Mar 02, 2005 8:55 pm |
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Eagle
Site Owner
Joined: Wed Sep 15, 2004 1:09 pm Posts: 14631 Location: Pittsburgh
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I do consider it a planet.
Also, did you know that our galexy is starting to be ripped apart? We are actually very VERY close to colliding with Andromeda the nearest Galexy to us ... near being in Space time not like ... tomorrow.
Andromeda is caught in our gravetational pull and is speeding toward us at some disgusting rate of speed.
They say that our solar system should have a good chance of making it out of the collision unharmed, but can't say for sure. One thing is for certain tho, the Milky Way Galexy is in the final years of its life, and will soon begin ripping apart, only to combine with andromeda to form one Huge Galexy ... one that will dominate this region of space in both size and brightness.
I wonder what will happen to the black hole at the middle of the Milky Way Galexy? I mean ... can we throw so much matter in it with the collision that it will ... clog?
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Wed Mar 02, 2005 10:38 pm |
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Terminator1997
George A. Romero
Joined: Mon Oct 11, 2004 10:30 pm Posts: 9773 Location: Enjoying a cold pint
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Eagle wrote: I do consider it a planet.
Also, did you know that our galexy is starting to be ripped apart? We are actually very VERY close to colliding with Andromeda the nearest Galexy to us ... near being in Space time not like ... tomorrow.
Andromeda is caught in our gravetational pull and is speeding toward us at some disgusting rate of speed.
They say that our solar system should have a good chance of making it out of the collision unharmed, but can't say for sure. One thing is for certain tho, the Milky Way Galexy is in the final years of its life, and will soon begin ripping apart, only to combine with andromeda to form one Huge Galexy ... one that will dominate this region of space in both size and brightness.
I wonder what will happen to the black hole at the middle of the Milky Way Galexy? I mean ... can we throw so much matter in it with the collision that it will ... clog?
yeah i saw a discovery channel show that talked about our galaxy crashing into the andromeda galaxy. they said it's moving toward us at like 100,000 miles an hour or something. it won't happen for a few million years though, so we'll be long gone. they said if you were to be able to look up in the sky as andromeda was closing in that it would take up most of the night sky. i bet that would be an amazing sight to see, too bad i won't be around to see it.
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Wed Mar 02, 2005 11:05 pm |
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Eagle
Site Owner
Joined: Wed Sep 15, 2004 1:09 pm Posts: 14631 Location: Pittsburgh
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Here take a look at this ... great little video ... I think you will like it.
Oh and its coming at 300,000 miles an hour and increasing every day.
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Thu Mar 03, 2005 3:26 am |
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Terminator1997
George A. Romero
Joined: Mon Oct 11, 2004 10:30 pm Posts: 9773 Location: Enjoying a cold pint
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Eagle wrote: Here take a look at this ... great little video ... I think you will like it.
Oh and its coming at 300,000 miles an hour and increasing every day.
300,000 miles an hour sounds so scary until you realize that it's still millions of light years away lol
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Thu Mar 03, 2005 5:11 pm |
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Eagle
Site Owner
Joined: Wed Sep 15, 2004 1:09 pm Posts: 14631 Location: Pittsburgh
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Code: What happens when a galaxy falls in with the wrong crowd? The irregular galaxy NGC 1427A is a spectacular example of the resulting stellar rumble. Under the gravitational grasp of a large gang of galaxies, called the Fornax cluster, the small bluish galaxy is plunging headlong into the group at 600 km/sec or nearly 400 mi/sec.
The Hubble Space Telescope's Advanced Camera for Surveys was used to obtain images of NGC 1427A in visible (green), red, and infrared filters in January 2003.
NGC 1427A will not survive long as an identifiable galaxy passing through the cluster. Within the next billion years, it will be completely disrupted, spilling its stars and remaining gas into intergalactic space within the Fornax cluster.
Image Credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA)
Terminator i was a moron and lost the video I wanted to show you. It was sweet shit and had images of what the sky would look like as Andromeda neared the Milky Way.
heres another one: http://cfa-www.harvard.edu/seuforum/ani ... lision.mpg
Some more cool images:

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Mon Mar 07, 2005 5:47 pm |
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Eagle
Site Owner
Joined: Wed Sep 15, 2004 1:09 pm Posts: 14631 Location: Pittsburgh
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An even better video on the simulated collision:
http://www.haydenplanetarium.org/hp/vo/ ... milwy.mpeg
Sky could look like:
And a picture for the road:

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Mon Mar 07, 2005 6:00 pm |
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Eagle
Site Owner
Joined: Wed Sep 15, 2004 1:09 pm Posts: 14631 Location: Pittsburgh
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OOOOO Purty.
This is like Galexy Porno ... and this would be the photoshoped babe except its all real!

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Mon Mar 07, 2005 6:12 pm |
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Eagle
Site Owner
Joined: Wed Sep 15, 2004 1:09 pm Posts: 14631 Location: Pittsburgh
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Good pic of a star!
This is what happens when I don't work and have too much free time.
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Mon Mar 07, 2005 6:44 pm |
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Neostorm
All Star Poster
Joined: Sat Oct 16, 2004 2:48 pm Posts: 4684 Location: Toronto
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Eagle wrote: OOOOO Purty.
This is like Galexy Porno ... and this would be the photoshoped babe except its all real! [/img]
I wonder what freud would say about that comment :razz:
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Mon Mar 07, 2005 6:52 pm |
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Eagle
Site Owner
Joined: Wed Sep 15, 2004 1:09 pm Posts: 14631 Location: Pittsburgh
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neostorm wrote: Eagle wrote: OOOOO Purty.
This is like Galexy Porno ... and this would be the photoshoped babe except its all real! [/img] I wonder what freud would say about that comment :razz:
Either that I had some sick obsession about 'getting it on' with a black hole in the center of that galexy or that I am a pedophile.
Freud was a psyco who happened to come close to understanding the mind, too bad close doesnt count.
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Mon Mar 07, 2005 6:54 pm |
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