Vaggelis Kolokotronis acquired his B.Sc in Mathematics from University of Athens in 1988. He then obtained his Diploma (1992), M.Sc (1993) and his Ph.D (1998) degrees all from Queen Mary and Westfield college, London.

He was a visiting researcher at the National Observatory of Athens (NOA) from 1999 until 2001 and a postdoctoral researcher (I.K.Y scholarship) at the Institute of Astronomy and Astrophysics for the next 14 months. He also worked as a Research Associate of the X-ray Astronomy group on XMM-Newton related science projects (2002 – 2005). In 2005 he joined the Institute as permanent Scientific Staff. Since 2012 he has been working as Science Communicator supporting the public outreach activities of at the Visitor Center of IAASARS in Penteli.

Theoretical and observational cosmology – Galaxies and clusters of galaxies and their clustering properties as modelling tools of large scale structure formation – Data analysis of galaxy clusters fields (XMM) – Observations of Cataclysmic Variable stars and models of geometrical and physical properties.