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Re: The Inquiring Mind Wants To Know

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Posted by yanniru/">yanniru on May 24, 1999 12:11:38 UTC

: Hello People, : If we know the conditions of the primordial Universe inhibited the travel of photons for 300,000 years until it had cooled off enough to permit the moment of "last scatter" and Light travels in a straight line relative to the curvature of space, How far out, in time or light years, from the initial point of the Big-Bang do you think we can possibly see with the Hubble Space Telescope? Isn't how long it took for our galaxy, our solar system, and our world, to form a consideration in this, since the light that reached this point prior to our galaxy's formation is no longer available for review, having already passed us by? Doesn't this determine the scope of the Light Bubble available for our review?

Hello Greg:

If our galaxy formed 6,000 years ago, we could still receive light emitted from distant parts of the universe 10,15 or 20 billion years ago, provided the universe existed at that time. We already receive light in the form of microwaves from the time that the universe was 300,000 years old, according to physics theory, but we do not know the age of the universe within a factor of two. The Bubble the Hubble can see depends on the age of the universe, not the age of our galaxy. Of course that statement contains an assumption that the size of the universe is larger than the Hubble Bubble. It is possible that the entire universe is smaller than the Hubble Bubble. In that case the Hubble may be looking at our own galaxy some billions of years ago, assuming that it existed then. I do not know of any scientific reason that proves that the universe must be larger than the Hubble Bubble.

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