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Credit: NASA/WMAP Science Team
Timeline of the expansion of the universe.
The light elements were created on the far left of this diagram at the beginning of the universe, and became neutral atoms at around 380,000 years after the big bang. |
"... we see them [...] as they existed in the very early universe"
Best Time to Study the Cosmos Was More Than 13 Billion Years AgoOf course what happened 13.75 billion years ago is still visible, it only has to be inspected (and we do that already) by the world's various space telescopes and other means of deep-space observation...
Things to keep in mind:
1. Looking at what is 'seen' now - which can be up to 3x13.75=41.25 billion lightyears away - it appears that all observed phenomena are very far apart from each other and keep drifting apart due to the expansion of the universe, while 13.75 billion years ago (just after the dark ages that followed the inflationary period) those phenomena were all taking place in a smaller compacted region.
2. So what is 'seen' should be compacted (I'm sure it can be done with software) 'condensed' to to speak to distances relevant to 13.75 billion years ago so that a better understanding of the dynamics might follow.
3. The way the 13.75 billion yr. old phenomena are depicted is deceiving as it is done on a two dimensional circular or oval surface while the data are taken from the inside of a seemingly hollow spherical perspective...
4. What is 'seen' should be condensed and turned inside out (I'm sure it can be done with software) so that a better understanding of the dynamics of 13.75 billion yrs ago may follow. Structures that have shapes like for instance the later galaxies could well be vortices - in fact the later galaxies may very well also be vortices.
5. Imaging all this in that condensed format will make it clear that space structures are integrated parts of what could be called a 3D "universal ocean", with waves and eddies, vortices and spouts, etc.
The Universe made possible by Number Sleuth
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| A
gamma-ray burst detected by NASA's Swift satellite in April 2009 - The
latest candidate for the most distant object in the universe. ~ Credit: Gemini Observatory / AURA / Levan, Tanvir, Cucchiara) |
"A gamma-ray burst detected by NASA's Swift satellite in April 2009 has been newly unveiled as a candidate for the most distant object in the universe.At an estimated distance of 13.14 billion light years, the burst lies far beyond any known quasar and could be more distant than any previously known galaxy or gamma-ray burst. [...]The gigantic burst of gamma rays erupted from an exploding star when the universe was less than 4% of its present age, just 520 million years old, and less than 10% of its present size visible and measurable universe 1."
~ Science Daily
"Space is expanding, carrying objects such as galaxies and photons with it, so light ravels a greater distance than a simple calculation (such as speed multiplied by time) might suggest. An object that emitted light 13.7 billion years ago is now forty two billion light years away. This figure depends on the values of cosmological parameters."
~ Scientific American (Editor)
When a gamma-ray burst is observed to be 13.14 billion light-years2 away from us now, and considering that the universe is 13.75 billion years old, could it not be that that gamma-ray burst was right here 13.14:3=4.38 billion years ago?
And could it not be that that what we now measure and observe as being a gamma-ray burst, that right now and very far away that object might not be a gamma-ray burst at all anymore?
Let's assume that we fully hypothetically
locate an enormous number of quasars (or objects that now still look like
quasars) 13.14 billion light years away from here (say, 600 million years after
the start of inflation) and say (again fully hypothetically) that they are seen
by us in a spherical shell surrounding us (considering that in our visible and
measurable universe 3 the earth is seen as its center), and say that
the universe 13.75 billion years ago had not fully expanded yet, must it not be so
then that 13.75 billion years ago all those quasars were concentrated around
here and that this here then likely was a quasar too.
Of course during the universal expansion those quasars had also been expanding, meaning
that 13.14 billion years ago those quasars must have been much
smaller in size - their energy just more concentrated.
Of course this means that what we see in the far distance now, is how it was in the past - not how it is now - and that the past - that we now see in the distance, may currently very well be resembling what we are here now.
Hypothetically it is possible that right now observers 4.38 billion light-years away from us, are using instrumentation that makes
them see 'us / this part of the universe' to be a - for example - gamma-ray burst.
Notes:
1 Cornish et al. calculated the universe to be 78
billion light-years across.
The distance from edge to edge is what is referred to as the comoving or proper distance.
2 The age of the Universe is now considered to be 13.75 billion years.
3 Of course the earth is not at all at the centre of the universe. It is just from our vantage point that we see the universe around us as spherical, it does of course totally depend on the location of our measuring instruments.
http://en.wikipedia.org/wiki/Observable_universe
http://en.wikipedia.org/wiki/Observable_universe
There are important remarks in the link above
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