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    • Mona Evans

      NASA | How to Cook a Comet. At around 230 million miles away from the sun, solar radiation begins to cook off the frozen water ice directly into gas. This is called sublimation. If it survives this, the intense radiation and pressure closer to the sun could destroy it altogether. Animators at NASA's Goddard Space Flight Center in Greenbelt, Md. created this short movie showing how the sun can cook a comet. Mona Evans, "Comets" http://www.bellaonline.com/articles/art33712.asp

    • Ask Kuiper

      Astronomy, C/2012 S1, Comet, Cosmology, Galaxy, Goddard Space Flight Center, Mars, Milky Way, NASA, Oort cloud, Outer space, Physics, Solar ...

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