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When is Saturn Like a Supernova?

When it's setting up a powerful shockwave in space made up of high-speed particles accelerated to nearly the speed of light, that's when! ->

February 20, 2013
4:09 PM EST
Illustration of Cassini investigating Saturn's bow shock region outside its magnetosphere (ESA)
Different orientations of magnetic field lines at Saturn's bow shock (ESA illustration)
Chandra, Hubble and Spitzer Space Telescope image of the Crab Nebula supernova remnant. (X-ray: NASA/CXC/SAO/F.Seward; Optical: NASA/ESA/ASU/J.Hester & A.Loll; Infrared: NASA/JPL-Caltech/Univ. Minn./R.Gehrz)

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