Catia Grimani, Associate Professor of Physics at the University of Urbino Carlo Bo, Italy. I was Post.doc and Assistant Research Professor at the New Mexico State University (USA). Subsequently, I wasa Researcher at the Italian Institute for Nuclear Physics; Professor under contract at the University of Urbino; Staff Researcher and Associate Professor at the same university. My research activity is incosmic-ray physics, mainly in the search of antimatter in cosmic rays and in the study of the role of cosmic rays in affecting the performance of missions in the interplanetary medium. As a core team member of the ESA LISA Pathfinder and LISA missions, I consider here a multi messenger approach for the study and origin of positrons.