This is the latest incarnation of the HDF video. The narration has been edited to include research from a paper in Physical Review Letters (2004) which puts the size of the universe at 46.5 billio...
This is the latest incarnation of the HDF video. The narration has been edited to include research from a paper in Physical Review Letters (2004) which puts the size of the universe at 46.5 billion light years, not 78 billion as I originally stated.
In the video narration, I round that value up to 47 billion light years.
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the big bang theory doesnt say that there was nothing BEFORE big bang, but that the matter before big bang was not like anything else in the universe today, the matter sorta' evolved into what we "know" today.
"If we point to a darker area and expose it even longer, the universe will increase in size in proportion to the time exposure of the photo."
No, it won't. The furthest we can see is the Cosmic Microwave Background Radiation (with redshift ~1100), which is much further than the most distant galaxy (redshift 7.6).
A longer exposure would reveal more (and possibly further) galaxies, but they won't change the size of the observable universe.
Wow.. really beautiful. It makes me feel so small... Thats why I really enjoy looking up at the sky at night and just... think about the different possibilities each star i see has.
...I hope we get a chance to find life on another planet. Well, not only life, but a whole civilization, much like ours. It would be intersting to watch another civilization live life like we are now.
The Hubble deep feild pictures were 'exposed' approx 10 hours time. If we point to a darker area and expose it even longer, the universe will increase in size in proportion to the time exposure of the photo.
Actually yes we are limited by our technology, you see, the images the Hubble have taken, are pictures of galaxies and stars as they existed billions of years ago because light only travels at a specific speed.
Until those rays of light pass by us, we can not see them. In essence when we see the stars at night, we literally are looking backwards into time.
This is the essence of relativity, and because of it, we can never actually see the edge of the universe, as it continues to expand.
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No, it won't. The furthest we can see is the Cosmic Microwave Background Radiation (with redshift ~1100), which is much further than the most distant galaxy (redshift 7.6).
A longer exposure would reveal more (and possibly further) galaxies, but they won't change the size of the observable universe.
...I hope we get a chance to find life on another planet. Well, not only life, but a whole civilization, much like ours. It would be intersting to watch another civilization live life like we are now.
The Hubble deep feild pictures were 'exposed' approx 10 hours time. If we point to a darker area and expose it even longer, the universe will increase in size in proportion to the time exposure of the photo.
Just think, there are stars being born right now that will never ever be visible to humans.
Such magnitude is nothing short of humbling.
Until those rays of light pass by us, we can not see them. In essence when we see the stars at night, we literally are looking backwards into time.
This is the essence of relativity, and because of it, we can never actually see the edge of the universe, as it continues to expand.