Abstract
Methods of laying environment sensers such as lunerquake sensers under the regolith of the moon is wanted for the future luner landing mission. Because of low thermal conductivity of the regolith, it is quite thermally stable in the regolith. We propose novel mechanism for drilling into the regolith, which uses reaction torque of a wheel. We report the concept of the mechanism, the design of the prototype, the analysis model of the mecanism and the result of the test.