Does the new theory on planet formation suggest that earth formed after the sun?

Question

http://news.yahoo.com/s/space/20070829/sc_space/planetformationmysterysolved

Answer 1

It's always been assumed that was the case; the problem had been, however, that rocky planets *shouldn't* be able to form in the early stages of the solar system - this theory explains why it happens that way.

Answer 2

If I'm reading that correctly, it only explains how the Earth could have formed BEFORE the sun. Which would have previously been a problem, since the solar wind would not yet have formed, blowing the lighter-weight material out of the inner solar system, and out of the way of the coalescing rocky planets. But the theory doesn't say it had to - and it certainly doesn't suggest it had to form after.

Personally, I don't think this new theory is really necessary. It assumes the rocky material needs to "push its way" through the lighter-weight gasses. When actually the gasses would be moving right along with the rocks - as the entire protoplanetary disk would be rotating.

Answer 3

You need to read that article again, it does not suggest that earth formed before the sun, the article refers to boulders that swirl around a star, our sun is a star.

Answer 4

It's possible.

It's also possible it formed before the sun.

No one really knows for sure as no one was there.