We study various topics in Theoretical Astrophysics, with a focus on High-Energy and Particle Astrophysics. Our goal is to understand the physical processes governing the observed astrophysical phenomena, in particular at high energies. 

A significant fraction of my time is devoted to leading the Israeli side of the Israeli/US UV satellite mission ULTRASAT, which is aiming at revolutionizing the study of astronomical transients.

For information on the WIS Astrophysics group and on its activity, check the astro web-page.