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Artist's rendering of Voyager 2 in the outer regions of the heliosphere, the magnetic bubble around the solar system generated by the solar wind. | NASA
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Voyager: Solar System Edge is Bubbly and 'Frothy'

According to Voyager the solar system edge is bubbly and 'frothy'. Find out how Voyager determined that the solar system edge is bubbly and 'frothy'.

June 10, 2011
3:00 AM EDT