Quote:
Originally Posted by xelasnave
Hi Markus
The way I understand things is the universe is expanding and at a point or place is expanding relative to us faster than the speed of light so anything past that point can give out light but the light gets further away..it can never reach us...think man on a truck with a hose pointing behind at you and he is going away...the water he directs at you although travling in your direction may hit you at first but falls shorter and shorter as he goes away.
The CBR is different in so far as its continually coming.
Alex
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Sort of, but that analogy doesn't take into account the extreme ends of red-shift. For example, could we ever detect a photon who's wavelength was the width of the observable universe?
Markus