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in a post on global warming linking to a PDF http://www.spacecenter.dk/research/...blications/svensmark_2007cosmoClimatology.pdf
there is a figure #9 showing the earth+ solar position over the last 200 million years
as our sun moves in and out of the spiral arms of the Milkyway
WHY does this happen
as if the other stars moved at a near speed
would not the solar position stay with in a given spiral arm
or the whole arm no long be in place as the stars move out
is our sun at a special orbit or speed
or what is going on?
there is a figure #9 showing the earth+ solar position over the last 200 million years
as our sun moves in and out of the spiral arms of the Milkyway
WHY does this happen
as if the other stars moved at a near speed
would not the solar position stay with in a given spiral arm
or the whole arm no long be in place as the stars move out
is our sun at a special orbit or speed
or what is going on?