This year, the Giuseppe Lorenzoni Award was won by Guglielmo Costa, a former research fellow in the DEMOBLACK team. The work, titled ‘Formation of GW190521 from stellar evolution: the impact of the hydrogen-rich envelope, dredge-up, and 12C(α, γ)16O rate on the pair-instability black hole mass gap’, focuses on the stellar physical processes which regulate the formation of stellar mass black holes. In particular, the work aimed to study viable formation scenarios for the components of the merging binary black holes system GW190521, detected by the LIGO-VIRGO gravitational waves interferometers. The official commission’s decision can be found here. More details on the work can be found here.