In 2015, ICRANet also organized a series of international meetings including: the Second ICRANet César Lattes Meeting (Niterói – Rio de Janeiro – João Pessoa – Recife – Fortaleza, Brazil), the International Conference on Gravitation and Cosmology / the 4th Galileo-Xu Guangqi meeting (Beijing, China), Fourteenth Marcel Grossmann Meeting - MG14 (Rome, Italy), the 1st ICRANet Julio Garavito Meeting on Relativistic Astrophysics (Bucaramanga – Bogotá, Colombia), the 1st Sandoval Vallarta Caribbean Meeting on Relativistic Astrophysics (Mexico City, Mexico).