“Duetto,” a commercial spinoff of the CheMin instrument on Mars Science Laboratory (PI: Dave Blake, SSX) is being used for conservation efforts by the Getty Museum. The instrument, built by inXitu, Inc., analyzes art objects and antiquities in situ. Duetto was first used to analyze the collection of antiquities, outdoor sculptures and manuscripts at the Getty Museum in the Getty Center. It will now be taken to the Roman ruins of Herculaneum (near Pompeii) in Italy to examine excavated murals for pigments, salts and deterioration products. As part of a five year partnership between the Getty Center and Egypt’s Supreme Council of Antiquities, the Duetto is also being used to accurately record the present condition of Tutankhamen’s tomb in the Valley of the Kings and establish the causes of deterioration of the wall paintings so that a conservation program for the tomb can be implemented. The work is supervised by Giacomo Chiari, chief scientist at the Getty Conservation Institute. (photo: analysis of a mummy shroud by Duetto).