The IQFR will participate in one of the next Mars rover instruments, the Mars Environmental Dynamics Analyzer (MEDA), a set of sensors that will provide measurements of temperature, wind speed and direction, pressure, relative humidity and dust size and shape. The principal investigator is Jose' Antonio Rodriguez-Manfredi, Centro de Astrobiologia, Instituto Nacional de Tecnica Aeroespacial, Spain, and the team of Alfonso Sáiz of the IQFR will participate in the ozone sensor.