Deep Impact

  • Thread starter Shawnzyoo
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does anyone know the reason why they used a copper "impactor" for the deep impact mission?
is it for its corrosion resistance?
thanks
 

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  • #2
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Shawnzyoo said:
does anyone know the reason why they used a copper "impactor" for the deep impact mission?
is it for its corrosion resistance?
thanks

The impactor is made primarily of copper (49%) as opposed to aluminum (24%) because it minimizes corruption of spectral emission lines that are used to analyze the nucleus.

http://deepimpact.jpl.nasa.gov/tech/impactor.html

The impactor was mostly vaporized so corrosion resistance was never a consideration, only the potential impact to the science.
 

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