Wednesday, November 6, 2013

Exactly how far back in time can we see and what is the theoretical limit - Seems to be the "Epoch of Recombination"

Turns out we can see pretty far back in time.  The cosmic dead end of visible light from the universe occurs at about 380,000 years post-big bang.  Now known as the "Epoch of Recombination".  Prior to recombination, the universe was still too hot for electrons and protons to form the most basic atom, hydrogen. Until those first hydrogen atoms came onto the scene, scientists think, the cosmos was an opaque soup of energy. Only afterward did the universe became transparent to light....
Who knew the old magazine when i was a kid would have an interesting article on the boundaries of the visible universe...

LINK

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