APPA / MML At GSI, the research divisions Atomic physics , Biophysics , Materials research , and Plasma physics/PHELIX are organized under the roof of APPA/MML, where MML is the Helmholtz program "From [...] "From Matter to Materials and Life" , and APPA, "Atomic, Plasma Physics and Application", is one of the four research pillars of FAIR and investigates how matter is composed and how it interacts with radiation [...] which follow diverse scientific questions, though share facilities and instrumentation for their research. Further informations Indepth presentations about APPA may be found on the following pages: FAIR