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Q:
What was it like 3000000000000 years ago?
- Tolya (age 8)
Naperville Illinoise USA
A:
We don't know. We can pretty much keep track of the last 13.7 billion years. At the beginning of that period things were very hot and dense. We're not sure even how to describe time before that.
Mike W.
(published on 03/03/2011)
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