Nicolas T. Matsopoulos has degrees in Shipbuilding (BEng), Natural Sciences (BSc), Science Communication (MSc) and in Education (MEd). His interest started as an amateur astronomer in early adolescence. During the period 1973‒1978 he worked as a volunteer observer at the Astronomical Institute of the National Observatory of Athens. In 1979 he joined its permanent staff observing variable and binary stars, the major planets and the Sun, in collaboration with the US Air Force personnel who run the Solar Observatory at the Penteli Astronomical Centre.
Furthermore, he developed a deep interest in the History of Science and Science Communication. In 1995 he developed the Visitor Centre at Penteli Observatory, financed by EU funds. Since then, and until his retirement at the end of 2014, he was in charge of the Visitor Centre and dedicated himself to science communication. During this period he gave tours to about a quarter of a million visitors, hundreds of lectures all over the country, he established the first amateur astronomy society in Greece, and has produced several astronomical documentaries for the needs of the Visitor Centre and for local TV channels. He has written or co-written more than 270 articles, conference presentations and papers and eight books.
Theofanis Matsopoulos specializes in astrophotography, digital image processing, the 3D animation, fulldome cinematography and video production for digital planetariums. He is a partner of the European Southern Observatory (ESO), which is based in Munich and operates, in the desert Atacama in Chile, the largest astronomical observatories in the world.
He has created and directed documentaries for planetariums that they are presented in planetariums al over the world and have been translated into 18 languages. The documentary "From Earth To The Universe" and "The Hot and Energetic Universe" as well as more than 300 video clips, time-lapses and 3D animations are at the European Southern Observatory's website and distributed free to disseminate astronomy science in general public.
He photographs nightscapes, astronomical phenomena and celestial deep sky objects using various telescopes in private astronomical observatory.
He also collaborates with the National Observatory of Athens taking astronomical images using the historic Newall telescope and state of the art Aristarchos telescope.
He has presented three exhibitions: "The Greece of the Stars", "Between Heaven and Earth", "Ancient Corinth" in Athens, Ioannina, Corinth and other cities and islands in Greece.
Finally he has participated in over 40 international documentary and photography festivals.
Konstantinos Sakkas has a degree in Civil Engineering from the National Technical University of Athens. Founder of Zagori Observatory and Ioannina Amateur Astronomy Association. He is actively engaged in astronomy since 1999 by organizing events and star parties in schools, private and public spaces as well as giving astronomy presentations in primary schools and high schools.
Christos Sakkas has degrees in Civil Engineering from the University of Patras and MSC Engineering Project Management from University of Manchester Institute of Science and Technology, and works from 1999 in civil engineering constructions.