EPOXI
Two intriguing investigations -- One flight-proven spacecraft
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CO2 Jet Process
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JPL version
Caption: This graphic depicts the process seen on Hartley 2 where subsurface carbon dioxide ice located deeper in the comet, feels the warmth from the sun and sublimates out of the nucleus in jets carrying bits of water ice with it. The jets appear above discrete surface features.
Credit: NASA/JPL-Caltech/UMD/McREL
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