NUCLIO – Núcleo Interactivo de Astronomia (NUCLIO) is a non-profit association and NGO for development composed of professional astrophysicists, geologists, science educators, science teachers and amateur astronomers devoted to public outreach and science education. NUCLIO is an official training centre recognized by the Portuguese Ministry of Education. Our vision is to train and support educators and students by introducing real research in classroom settings. To achieve this vision we produce resources, train and support teachers and provide online and onsite support for the implementation of innovative models for science learning. NUCLIO’s activities include: training teachers in the use of new technologies, innovative methodologies, promotion of real research in classroom where students are introduced to the scientific methods using robotic telescopes , data mining, and other advanced tools for science learning. NUCLIO has been involved in several EC projects as national coordinator for Portugal and more recently as coordinator of international community building efforts, with the mission to support teacher in the uptake of innovative approaches for science learning and the use of more student centred approach such as the use of inquiry based learning methodology. NUCLIO is the coordinator of one of the largest astronomy education efforts in the world, the Galileo Teacher Training Program, a legacy of International Year of Astronomy 2009 endorsed by the International Astronomical Union and UNESCO.