BSc in Physics, MSc in Astrophysics, PhD in Astrophysics, National Kapodistrian University of Athens, Physics Department, Section of Astronomy, Astrophysics and Mechanics. DAAD fellow at the Eberhard-Karls University of Tubingen, Germany, Institute for Astronomy and Astrophysics, Theoretical Astrophysics. Post-doc at SISSA, Trieste, Italy. Research fellow at the School of Mathematical Sciences, University of Nottingham, UK. Postdoctoral research fellow at the Physics and Astronomy Department of the University of Mississippi, USA. Postdoctoral fellow at Instituto Superior Tecnico, Lisbon, Portugal. Research fellow at the School of Mathematical Sciences, University of Nottingham, UK. Postdoctoral fellow at Sapienza University of Rome, Italy. Assistant Professor at the Aristotle University of Thessaloniki, Greece.