Quote:
Originally Posted by T@T
I didn't know that, seems every program I see they conclude the big bang started as an extremely hot and dense particle smaller than an atom that basicly blew up 13.7 billion years ago and expanded to what we see today.
I'm far from a scientist but my pea brain just can't except some of this.
Where did the dense particle come from?
How old was it before it popped?
If hubble can see a galaxy 13.7 billion L-years away surely the big bang didn't instantly create galaxys...don't they take billions of years to form themselfs? Hubble could be looking at a galaxy 13.7 L-years away that formed 20 billion years earlier.
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I don't think that's an accurate description of current thinking on the "big bang" and most scientists don't really consider that name to be very accurate. I don't think I could do justice to describing the current state of the theory (while I am a scientist, I am not a physicist) but generally I think it involves a singularity, not a particle. Also, the estimated age of the universe is based on multiple lines of evidence including things like background radiation and I'm under the impression that physicists think they've got it down fairly accurately. I've read a couple of related books recently (Universe from Nothing by Lawrence Krauss and the Grand Design by Stephen Hawkings), but even reading those I find it hard to really get my head around some of the current science on the origins of the universe.