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Oldest thing in the universe(?)

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Timelord
 Post subject: Oldest thing in the universe(?)
PostPosted: Thu Oct 21, 2010 8:14 am 
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Edo Berger got an alert early last Thursday morning when a satellite detected a 10-second blast of energy known as a gamma ray burst coming from outer space.
Telescopes around the world swiveled to focus on the explosion, soon picking up infrared radiation, which is produced after gamma rays in this kind of event. Berger was ready to view the visible light, which should have followed.

It never arrived.

"We were kind of blown away. We immediately knew what that meant," Berger said.

What it meant was that he was looking at the oldest thing ever spotted -- an enormous star exploding 13 billion years ago.

"At that point the age of the universe was only 600 million years," he said. In other words, Berger said, he was looking "95 percent of the way back to the beginning of time."

The gamma radiation from GRB 090423, which took 13 billion years to reach earth, was detected by a NASA satellite called Swift. The infrared radiation was detected by the Gemini Observatory in Hawaii.

Attachment:
File comment: Gamma ray burst from 13 billion years ago.
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BULL
 Post subject: Re: Oldest thing in the universe(?)
PostPosted: Wed Oct 27, 2010 1:13 am 
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Interesting, and recalling my astronomy class, I believe this is an example of the Horizon Paradox, or is it in contradiction to it???

:paranoid:



(Depending on your interpretation of the Big Bang, how did we get here via expansion so far in advance of the event? (Shouldn't the event have "traveled" with us as part of expansion...) If we look in the OPPOSITE direction, why can we essentially still see as far as the Universe is old??? If we are roughly in the center of the Universe, why are we seeing "birth" type events AT the "horizon". Also, if we are in the center of the Universe, AND we can see roughly the age of the Universe in both directions, is the Universe really 28 billion years old and not ~14 billion...???)


Ladies and gentlemen, there are many fundamental questions to be answered...

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Timelord
 Post subject: Re: Oldest thing in the universe(?)
PostPosted: Wed Oct 27, 2010 8:09 am 
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Yes, but even terrestrial explosion leave remnants near the center of the blast sight as well as spew them outward. Yes?

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BULL
 Post subject: Re: Oldest thing in the universe(?)
PostPosted: Wed Oct 27, 2010 8:41 am 
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In that event, it seemingly wouldn't LOOK like a "fresh" explosion and would have great dispersion versus a concentrated event...

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Timelord
 Post subject: Re: Oldest thing in the universe(?)
PostPosted: Wed Oct 27, 2010 10:16 am 
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"There is a theory which states that if ever anybody discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened."

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