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pleco
SFN Addict
USA
2998 Posts |
 Posted - 07/03/2007 : 09:12:11
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Link
| The images were made by taking very deep exposures, then subtracting away all known light sources. What was left was a softly glowing web of light from no known source. The astronomers on the Spitzer team then said this could be the light from the very first stars. These stars were extremely massive, a hundred or more times the mass of the Sun — and up until now have been entirely theoretical. |
While I will wait for more data, I have to say that this stuff is why I love science...
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by Filthy
The neo-con methane machine will soon be running at full fart. |
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BigPapaSmurf
SFN Die Hard
3192 Posts |
Posted - 07/03/2007 : 09:58:41 [Permalink]
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| Amen to that! The deep field south has always been my favorite, mind-boggling in so many ways. |
"...things I have neither seen nor experienced nor heard tell of from anybody else; things, what is more, that do not in fact exist and could not ever exist at all. So my readers must not believe a word I say." -Lucian on his book True History
"...They accept such things on faith alone, without any evidence. So if a fraudulent and cunning person who knows how to take advantage of a situation comes among them, he can make himself rich in a short time." -Lucian critical of early Christians c.166 AD From his book, De Morte Peregrini |
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Cuneiformist
The Imperfectionist
USA
4955 Posts |
 Posted - 07/03/2007 : 10:06:55 [Permalink]
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| Wait for it... |
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HalfMooner
Dingaling
Philippines
15831 Posts |
Posted - 07/03/2007 : 17:55:14 [Permalink]
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Layman's question: Why isn't the light from these original stars coming from point sources, like normal stars?
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“Biology is just physics that has begun to smell bad.” —HalfMooner
Here's a link to Moonscape News, and one to its Archive. |
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Dr. Mabuse
Septic Fiend
Sweden
9687 Posts |
Posted - 07/03/2007 : 19:47:57 [Permalink]
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There was so much denser interstellar medium, such as gas, back then. Both Hydrogen and Helium. The Universe had a very small fraction of the volume it had today. But the number of hudrogen and helium atoms was basically the same then as it is now. Space was "thick" with stuff. Think of car headlights in a dense fog.
Also, it could partly be because space itself has expanded so much since then (think clear light-bulb versus diffused light bulb) so that the point source is no longer a point but a larger sphere.
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Dr. Mabuse - "When the going gets tough, the tough get Duct-tape..."
Dr. Mabuse whisper.mp3
"Equivocation is not just a job, for a creationist it's a way of life..." Dr. Mabuse
Support American Troops in Iraq:
Send them unarmed civilians for target practice..
Collateralmurder. |
| Edited by - Dr. Mabuse on 07/03/2007 19:49:34 |
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JEROME DA GNOME
BANNED
2418 Posts |
Posted - 07/03/2007 : 20:01:33 [Permalink]
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Does the universe have a border?
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What a man believes upon grossly insufficient evidence is an index into his desires -- desires of which he himself is often unconscious. If a man is offered a fact which goes against his instincts, he will scrutinize it closely, and unless the evidence is overwhelming, he will refuse to believe it. If, on the other hand, he is offered something which affords a reason for acting in accordance to his instincts, he will accept it even on the slightest evidence. The origin of myths is explained in this way. - Bertrand Russell |
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HalfMooner
Dingaling
Philippines
15831 Posts |
Posted - 07/03/2007 : 20:32:41 [Permalink]
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Originally posted by Dr. Mabuse
There was so much denser interstellar medium, such as gas, back then. Both Hydrogen and Helium. The Universe had a very small fraction of the volume it had today. But the number of hudrogen and helium atoms was basically the same then as it is now. Space was "thick" with stuff. Think of car headlights in a dense fog.
Also, it could partly be because space itself has expanded so much since then (think clear light-bulb versus diffused light bulb) so that the point source is no longer a point but a larger sphere.
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And maybe it was just foggy that day.
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“Biology is just physics that has begun to smell bad.” —HalfMooner
Here's a link to Moonscape News, and one to its Archive. |
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HalfMooner
Dingaling
Philippines
15831 Posts |
Posted - 07/03/2007 : 20:37:44 [Permalink]
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Originally posted by JEROME DA GNOME
Does the universe have a border?
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Since the universe is by definition "everything there is," no.
But Futurama had an episode where the crew visited the universe's border. Best I recall: They looked with binoculars from the railing there across to the neighboring universe. It was identical to ours, except that the people there wore cowboy hats.
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“Biology is just physics that has begun to smell bad.” —HalfMooner
Here's a link to Moonscape News, and one to its Archive. |
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JEROME DA GNOME
BANNED
2418 Posts |
Posted - 07/03/2007 : 20:50:04 [Permalink]
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Originally posted by HalfMooner
Originally posted by JEROME DA GNOME
Does the universe have a border?
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Since the universe is by definition "everything there is," no.
But Futurama had an episode where the crew visited the universe's border. Best I recall: They looked with binoculars from the railing there across to the neighboring universe. It was identical to ours, except that the people there wore cowboy hats.
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What is past "everything"?
Nothing?
Past the border of the universe could be nothing.
There could be a border between everything and nothing.
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What a man believes upon grossly insufficient evidence is an index into his desires -- desires of which he himself is often unconscious. If a man is offered a fact which goes against his instincts, he will scrutinize it closely, and unless the evidence is overwhelming, he will refuse to believe it. If, on the other hand, he is offered something which affords a reason for acting in accordance to his instincts, he will accept it even on the slightest evidence. The origin of myths is explained in this way. - Bertrand Russell |
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Dr. Mabuse
Septic Fiend
Sweden
9687 Posts |
Posted - 07/03/2007 : 21:56:16 [Permalink]
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You know, Jerome... I really believe this topic is way beyond your grasp. Why don't you let this one be? Please?
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Dr. Mabuse - "When the going gets tough, the tough get Duct-tape..."
Dr. Mabuse whisper.mp3
"Equivocation is not just a job, for a creationist it's a way of life..." Dr. Mabuse
Support American Troops in Iraq:
Send them unarmed civilians for target practice..
Collateralmurder. |
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JEROME DA GNOME
BANNED
2418 Posts |
Posted - 07/03/2007 : 22:10:01 [Permalink]
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Originally posted by Dr. Mabuse
You know, Jerome... I really believe this topic is way beyond your grasp. Why don't you let this one be? Please?
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Wow, I was not posting directly to you but you felt the need to insult me. Thanks for your assessment.
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What a man believes upon grossly insufficient evidence is an index into his desires -- desires of which he himself is often unconscious. If a man is offered a fact which goes against his instincts, he will scrutinize it closely, and unless the evidence is overwhelming, he will refuse to believe it. If, on the other hand, he is offered something which affords a reason for acting in accordance to his instincts, he will accept it even on the slightest evidence. The origin of myths is explained in this way. - Bertrand Russell |
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JEROME DA GNOME
BANNED
2418 Posts |
Posted - 07/03/2007 : 22:11:18 [Permalink]
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Originally posted by Dr. Mabuse
You know, Jerome... I really believe this topic is way beyond your grasp. Why don't you let this one be? Please?
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Are you claiming you know the answer, but I am to stupid to understand what you will say?
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What a man believes upon grossly insufficient evidence is an index into his desires -- desires of which he himself is often unconscious. If a man is offered a fact which goes against his instincts, he will scrutinize it closely, and unless the evidence is overwhelming, he will refuse to believe it. If, on the other hand, he is offered something which affords a reason for acting in accordance to his instincts, he will accept it even on the slightest evidence. The origin of myths is explained in this way. - Bertrand Russell |
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Dave W.
Info Junkie
USA
26020 Posts |
Posted - 07/03/2007 : 23:15:26 [Permalink]
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Originally posted by JEROME DA GNOME
What is past "everything"?
Nothing? |
How would you get "past" everything? Assume that you could instantaneously teleport as far as you want, with no Relativity effects whatsoever, and tell us how to get to where "everything" ends, please. |
- Dave W. (Private Msg, EMail)
Evidently, I rock!
Why not question something for a change?
Visit Dave's Psoriasis Info, too. |
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Kil
Evil Skeptic
USA
13476 Posts |
Posted - 07/03/2007 : 23:16:25 [Permalink]
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Originally posted by Dr. Mabuse
You know, Jerome... I really believe this topic is way beyond your grasp. Why don't you let this one be? Please?
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Was this reply really necessary?
Jerome, this is what it has come to. You can't even ask a question without putting everyone here on guard and waiting for you to spring an argument for argument sake. When most of the people here are reacting that way, it is time for you to consider the possibility that you have yourself to blame for that.
Think about it. If you want to discuss this further you can PM me. Please don't reply to this post in this thread…
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Uncertainty may make you uncomfortable. Certainty makes you ridiculous.
Why not question something for a change?
Genetic Literacy Project |
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Valiant Dancer
Forum Goalie
USA
4826 Posts |
Posted - 07/03/2007 : 23:21:13 [Permalink]
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Originally posted by HalfMooner
Originally posted by JEROME DA GNOME
Does the universe have a border?
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Since the universe is by definition "everything there is," no.
But Futurama had an episode where the crew visited the universe's border. Best I recall: They looked with binoculars from the railing there across to the neighboring universe. It was identical to ours, except that the people there wore cowboy hats.
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Please don't encourage the troll. |
Cthulhu/Asmodeus when you're tired of voting for the lesser of two evils
Brother Cutlass of Reasoned Discussion |
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HalfMooner
Dingaling
Philippines
15831 Posts |
Posted - 07/04/2007 : 00:59:46 [Permalink]
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Originally posted by Valiant Dancer
Originally posted by HalfMooner
Originally posted by JEROME DA GNOME
Does the universe have a border?
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Since the universe is by definition "everything there is," no.
But Futurama had an episode where the crew visited the universe's border. Best I recall: They looked with binoculars from the railing there across to the neighboring universe. It was identical to ours, except that the people there wore cowboy hats.
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Please don't encourage the troll.
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Good advice, but I don't always follow good advice as well as I should. There is the other way of looking at this, too: By explaining something to someone like Jerome who cannot understand anything, one is really addressing the multitude of honest and curious lurkers that one senses "out there." So I vacillate, between wanting to show off my half-wit's superiority over a no-wit, and just wanting to ignore the guy. As, perhaps, many others here have done. He's like a train-wreck in progress: You hate what you're seeing, but you just can't look away.
Besides, that really was a cool Futurama episode.
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“Biology is just physics that has begun to smell bad.” —HalfMooner
Here's a link to Moonscape News, and one to its Archive. |
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Let there be Light!
