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Brain Dwarf
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How can we be sure that the Cosmic Microwave Backgound Radiation is a relic of the big bang and not a reflected echo of the sun's solar wind after it's interaction with the heliopause?
I ask this because I read an article some years ago which indicated that one of the voyagers had detected a radio signal which had a 'signature' identical to a solar event which passed it sometime earlier. THis 'echo' was then positively identified as an echo of that earlier solar activity.
How can it be proven that that CMBR is extrasolar apart from taking measurements outside the solar system ?.
I ask this because I read an article some years ago which indicated that one of the voyagers had detected a radio signal which had a 'signature' identical to a solar event which passed it sometime earlier. THis 'echo' was then positively identified as an echo of that earlier solar activity.
How can it be proven that that CMBR is extrasolar apart from taking measurements outside the solar system ?.