The proceedings from the 12th Brazilian School of Cosmology and Gravitation offer an up-to-date series of lectures covering issues at the forefront of cosmology, gravitation, and astrophysics. Of particular note are the interesting results presented by Belinski regarding the absence of black hole evaporation. In addition, Riffini offers an insightful article you’ll want to read that explores the origin of gamma-0 ray bursts.