(October, 9 2015) Even Nobel Prize for Physics, Takaaki Kajita, will be present at the ceremony of laying the foundation stone of the first Large Size Telescope (LST) of the Cherenkov Telescope Array (CTA) North, one of the two buildings that make up the largest observatory for gamma astronomy ever built in the world. The event takes place this afternoon at the observatory Roque de los Muchachos (ORM) of the Instituto de Astrophysics de Canarias (IAC), at 2,200 meters above sea level, on the island of La Palma in the Canaries. The ORM will host, in fact, the CTA North, while the site chosen for the construction of South CTA, in the southern hemisphere, is the European Southern Observatory (ESO) in Paranal, Chile. The CTA project, which Italy participates with the National Institute for Astrophysics (INAF), the National Institute of Nuclear Physics (INFN) and a consortium of universities led by the University of Padua, involves the construction of over 100 new generation telescopes dedicated to the study of gamma rays. (Red)