NIR Spectra on Itokawa (IMAGE)

Brown University

NIR Spectra on Itokawa

Caption

Near infrared reflectance (NIR) spectra of the two areas (open markers) on Itokawa fit with the Alta'ameem meteorite spectrum after nanophase reduced iron particles are numerically added. Data suggest that the dark and red area has about 0.04 percent volume more iron particles than the bright and blue area. This is clear evidence that space weathering is causing the darkening and reddening of the Itokawa's surface.

Credit

Near-Infrared Spectrometer

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