Frothy bubbles at the edge of our solar system
The Guardian / The Guardian
03-Jul-2011

In this brief but interesting NASA video, we explore the edge of our solar system to learn what a ballerina's skirt and the sun's magnetic field have in common

 What do a ballerina's skirt and the sun's magnetic field have in common? In this ScienceCast, NASA tells us about a strange phenomenon that their space probes, Voyagers 1 & 2, discovered at the edge of our solar system -- a froth of gigantic magnetic bubbles that separates us from the rest of the galaxy.

"The Voyager probes appear to have entered a strange realm of frothy magnetic bubbles," says astronomer Merav Opher of Boston University. "This is very surprising."

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