An article published in “The Astronomical Journal” reports observations of the blazar OJ 287 conducted by combining different radio telescopes in various areas of the world and the RadioAstron antenna in space. A team of researchers obtained in this way the highest resolution images obtained so far of OJ 287. They confirm the presence of two supermassive black holes powering the active galactic nucleus, one of the reasons why this blazar has been the focus of many scientists’ interest for a long time.