- #1
bwana
- 82
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Smoot et. al. have measure a dipole (as well as higher order anisotropies) in the cosmic microwave background. This has been interpreted as our motion through the universe.
so how do we know that the dipole is due to our motion through space and not the anisotropic expansion of space? the only way to know this would be to make measurements from two places that are far apart (one measurement taken within our galaxy and another from outside).
so how do we know that the dipole is due to our motion through space and not the anisotropic expansion of space? the only way to know this would be to make measurements from two places that are far apart (one measurement taken within our galaxy and another from outside).