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Deepest image of the universe ever taken in visible light!
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| DJYaNiK |
Picture not posted due to size (60MB's)
What did the first galaxies look like? To help answer this question, the Hubble Space Telescope has just finished taking the Hubble Ultra Deep Field (HUDF), the deepest image of the universe ever taken in visible light. Pictured above, the HUDF shows a sampling of the oldest galaxies ever seen, galaxies that formed just after the dark ages, 13 billion years ago, when the universe was only 5 percent of its present age. The Hubble Space Telescope's NICMOS and new ACS cameras took the image. Staring nearly 3 months at the same spot, the HUDF is four times more sensitive, in some colors, than the original Hubble Deep Field (HDF). Astronomers the world over will likely study the HUDF for years to come to better understand how stars and galaxies formed in the early universe. |
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| Omegasox |
| Cool pic, thanks for the link. :) |
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| Floorfiller |
| looks about the same as what we've already seen hehehe :p |
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| Eu4ea |
so when we look at something billions of light years away, it's really the very past?? At stars that have long died out? I love these thoughts..
and has it ever been scientifically proven how old/big the universe is??
It's fun doing your head in when a man tries to understad infinity around him, which we can't comprehend.
thanks for the pic! |
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| Omegasox |
| quote: | Originally posted by Eu4ea
so when we look at something billions of light years away, it's really the very past?? At stars that have long died out? I love these thoughts..
and has it ever been scientifically proven how old/big the universe is??
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Yes. And it has been speculated the universe is ~11-20 billion years old. Somewhat a rough estimate. :o |
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| SuperFarStucker |
| quote: | Originally posted by Eu4ea
so when we look at something billions of light years away, it's really the very past?? At stars that have long died out? I love these thoughts..
and has it ever been scientifically proven how old/big the universe is??
It's fun doing your head in when a man tries to understad infinity around him, which we can't comprehend.
thanks for the pic! |
Present happens relative to an observer. Past and future seem abstract concepts at large distances. Even the sun's light takes 8 minutes to reach our planet. So, suppose the sun just stopped producing light at some instance in time. It wouldn't affect us for 8 minutes. One can argue that the event in which the sun went out happened 8 minutes ago, but since it doesn't affect us for 8 minutes does it happen in the past, or does it happen in that moment we notice it?
For casual intents and purposes it would be the moment we notice it. Nobody stops and calculates the distance from which they see something and then figure the fractional amount of time it takes for the light signaling that event to reach us. Perception is the present, events always occur in the past. |
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| gwrmarines |
| "When you look at the sky, your looking in the past". |
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| DiMethGuy |
| man there sure is a lot of out there...somebody clean up that mess or no rave for you this weekend!! |
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| Lumps |
Scale that picture down to the width of a dime, put it 75 yards away, and you have the area of universe that they took that picture of.
To put it simply - the size of the universe is much to big to even begin to comprehend. Massive.
APOD in the heezy |
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| smokeape |
| quote: | Originally posted by DJYaNiK
Staring nearly 3 months at the same spot, the HUDF is four times more sensitive, in some colors, than the original Hubble Deep Field (HDF). Astronomers the world over will likely study the HUDF for years to come to better understand how stars and galaxies formed in the early universe. |
So why did it take the Hubble nearly 3 months of staring? If they were looking for old stuff, like light that what would take more than 3 months to get here, then wouldn't a quick pic do the same?
[[[smoke]]] |
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