May 12

Prof. Dr. Enrico Barausse, SISSA, Italy

May 25

Prof. Christos Charmousis, Université Paris-Saclay, France

Mar 20

Dr. Arthur Suvorov, Manly Astrophysics, Australia

Mar 16

Dr. Hao-Jui Kuan, AEI Potsdam, Germany

Jan 25

Saulo Soares, Paraiba, Brazil

Dec 15

Prof. Dr. Hajime Sotani, RIKEN, Japan

Dec 8

Dr. Areti Eleni, University of Athens, Greece

Dec 1

Dr. Andrew Coates, Koç University, Turkey

Nov 2

Alex David Kerin, University of Melbourne, Australia

Sep 22

Dr. Roland Haas, University of Illinois Urbana-Champaign, USA

Jul 22

Dr. Dina Traykova, AEI, Potsdam Germany

Jul 8

Prof. Hajime Sotani, Kyoto University, Japan

Jun 10

Prof. Marc Casals, Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro, Brazil; Institut für Theoretische Physik, Universität Leipzig, Germany

Jun 3

Dr. Miguel Bezares, SISSA, Trieste, Italy

May 27

Prof. Lijing Shao, KIAA at Peking University, Beijing, China