
Click on the image for the movie
Data from NASA's Moon Mineralogy Mapper instrument on the Indian Space
Research Organization's Chandrayaan-1 spacecraft reveal subtle and
previously unknown lunar diversity and features. The observations reveal
clues to the moon's history, mineralogy and water content.
In this movie, images taken at wavelengths not visible or discernable to
the human eye are assigned colors, revealing the invisible "colors" of the
moon. While our eyes are sensitive to wavelengths from about 0.4 to 0.75
micrometers, the Moon Mineralogy Mapper measured energy from the moon from
0.45 through 3 micrometers, well into the infrared portion of the light
spectrum. The instrument has a spectrometer that splits the wavelength
range into 86 images, or bands, in one mode, and 260 bands in its higher
resolution mode.
The animation takes a random walk through the data, with various
combinations of images systematically assigned colors of red, green and
blue. Different colors show various minerals and water on the surface of
the moon. This is a sampling of just some of the data -- more information
is contained in the whole Moon Mineralogy Mapper data set.