Athanasios Papaioannou received his B.Sc. in Physics with an orientation in Astrophysics from the Department of Physics of the National and Kapodistrian University of Athens (NKUA) in 2005. In 2007 he received his M.Sc. degree in Elementary Particles and Nuclear Physics and in 2012 he earned his Ph.D from the same Department.
Since 2011 he joined the Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing (IAASARS) of the National Observatory of Athens (NOA) to work as a Research Associate and further on as a Post-doc Researcher. He has been a Visiting Researcher at the Christian-Albrechts-Universitat zu Kiel
(Germany), the University of Turku
(Finland) and the Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation by N.V. Pushkov RAS (IZMIRAN)
(Russia). In 2017 he was elected as an Associate Researcher at IAASARS/NOA.