Spitzer Peels Back Layers of Star's Explosion

Astronomers using NASA's infrared Spitzer Space Telescope have discovered that an exploded star, named Cassiopeia A, blew up in a somewhat orderly fashion, retaining much of its original onion-like layering.

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<p><a href="http://www.physorg.com/news81178630.html">Spitzer Peels Back Layers of Star's Explosion</a></p> <p>Astronomers using NASA's infrared Spitzer Space Telescope have discovered that an exploded star, named Cassiopeia A, blew up in a somewhat orderly fashion, retaining much of its original onion-like layering.</p>