PARTICIPATE IN QUARTERLY SCIENCE TEAM MEETINGS CONTRIBUTE EXPERTISE TO SCIENCE OPTIMIZATION AND RISK REDUCTION TASKS INCLUDING A STUDY OF VTLS FOURTH LASER SCIENCE DRIVERS AND SCIENTIFIC REVIEW OF MISSION REQUIREMENTS. WRITING CHAPTER SULUR ON VENUS AND MARS FOR THE BOOK THE ROLE OF SULFUR IN PLANETARY PROCESSES: FROM ATMOSPHERES TO CORES ED. BY DALIEL HAROV AND GLEB POKROVSKY (ELSEVIER).