AISF is welcoming 40 students from all over the world for the third edition of Particle and Astroparticle Physics Autumn Program (PAPAP17) A four days journey from the endlessly small to the endlessly big. The event will be held in central Italy, between the cities of Rome and L’Aquila from the 9th to the 13th October, 2017. We will visit some cutting-edge facilities in particle and astroparticle physics such as the underground Gran Sasso National Laboratories and the Frascati National Laboratories. For more information visit the official website http://www.ai-sf.it/papap17