Measuring Mercury's Surface Composition (Released: 2011-05-03)
3 May 2011, 19:04 UTC
MESSENGER carries a Gamma-Ray Spectrometer (GRS) capable of measuring and characterizing gamma-ray emissions from the surface of Mercury. Gamma rays coming from Mercury carry information about the concentrations of elements present on its surface, and observations from the GRS are being used to determine the surface composition of the planet. Read more to see how these results will be applied to studying the formation and geologic history of Mercury.
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