Skvortsov and Kornienko with Matroshka-2 Kibo Hardware

ISS023-E-031598 (4 May 2010) --- Russian cosmonauts Alexander Skvortsov (left) and Mikhail Kornienko, both Expedition 23 flight engineers, work with the European Matroshka-R Phantom experiment in the Kibo laboratory of the International Space Station. Matroshka, the name for the traditional Russian set of nestling dolls, is an antroph-amorphous model of a human torso designed for radiation studies.