Modi?ed KLYPVE is a novel ?uorescence detector of ultra high energy cosmic rays (UHECRs, energies ≥50EeV) to be installed on the Russian Segment of the International Space Station. The main goal of the experiment is to register arrival directions and energies of UHECRs but it will be able to register other transient events in the atmosphere as well. The main component of KLYPVE is a segmented two component optical system with a large entrance pupil and a wide ?eld of view, which provides annual exposure approximately twice that of the Pierre Auger Observatory. The project is actively developed by a working group of the JEM-EUSO Collaboration led by Skobeltsyn Institute of Nuclear Physics at Moscow State University (Russia). The current status ofKLYPVE with a focus on its scienti?c tasks, technical parameters and instruments is presented.