Gr@v member João Rosa was one of the recipients of the 2018 Alberto prize, awarded by the Portuguese Society of Relativity and Gravitation (SPRG). The prize was given for his work on the phenomenon of superradiance and its physical and astrophysical implications. The prize was shared by Richard Brito, a researcher of the Max Planck Institute for Gravitational Physics, in Berlin, Germany. The prize was delivered at the General Assembly of the SPRG, on 19th December 2018, during the XI Black Holes Workshop.