I read an article last year that claimed there may be evidence that some of the planets in our solar system may not have been "created" in the same area of space and time as the rest of the planets were. That some may be rogue planets caught up in the heliosphere at a later date.<quoted text>
If the Universe is 11-17 billion years old, then the Earth - supposedly 4.5 billion years old, would have been created around the 12th or 13 billion year the Universe was in existence.
A simple math equation would have led you to this number.
C'mon - you can do this too. You just need to try a little.
This isn't it but it looks interesting. I think the article I mentioned was on livescience.com .