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Posted by Bruce on June 3, 2001 20:05:39 UTC

For your first idea check out the heliopause and see what you think?
wrt to your second comment-the expansion of the universe can be thought of as spacetime stretching. The planets wouldn't be effected because electromagnetic (at the atomic level) and gravitational forces hold them together. Their orbits are defined by 2 things. Their energy per unit mass and angular momentum per unit mass are constants of the motion. From what I understand the analyse is extremely difficult. I have to go to Texas for a week but I'll look back after I return. Maybe I can read the paper?

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