| Samuel | Farrens | University College London | 2010-07-14 | 2010-07-15 |
| Anne | Bauer | University Observatory Munich | 2010-07-13 | 2010-07-14 |
| Larry | Nittler | Carnegie Institution of Washington | 2010-06-17 | 2010-06-18 |
| Valeri | Obukhov | Tomsk State Pedagogical University (Rusia) | 2010-05-24 | 2010-05-27 |
| Konstantin | Osetrin | Tomsk State Pedagogical University (Rusia) | 2010-05-24 | 2010-05-27 |
| Vladimir | Dzhunushaliev | Kyrgyz-Russian Slavic University, Bishkek, Kyrgyz Republic | 2010-05-18 | 2010-05-21 |
| Vincent | Desjacques | U. of Zurich, Switzerland | 2010-05-11 | 2010-05-14 |
| Carles | Badenes | Weizmann Institute of Science / Tel-Aviv University | 2010-05-10 | 2010-05-14 |
| Josep | Sanz | Wide Spectrum Software Solutions, SL | 2010-04-04 | 2010-05-04 |
| Sergi | Hildebrandt | Universitat de Grenoble, IN2P3 (France) | 2010-04-26 | 2010-04-30 |
| Giuseppe | Colucci | Istituto Nazionale di Fisica Nucleare - Sezione di Bari | 2010-04-19 | 2010-04-30 |
| Mercedes | López-Morales | Carnegie Institution of Washington | 2010-04-28 | 2010-04-29 |
| Violeta | González | Durham University | 2010-04-12 | 2010-04-16 |
| Artyom | Yurov | Kaliningrad State University (Russia) | 2010-03-15 | 2010-03-29 |
| Pietro | Colangelo | Istituto Nazionale di Fisica Nucleare-Sezione di Bari | 2010-03-21 | 2010-03-28 |
| Kirill | Bronnikov | Institute of Metrology (Moscu) | 2010-03-15 | 2010-03-22 |
| Ashley | Ross | ICG Porsmouth University | 2010-03-17 | 2010-03-19 |
| Anne Marie | Nzoiki | Cape Town University | 2010-03-08 | 2010-03-19 |
| Amare | Gidelew | Cape Town University | 2010-03-08 | 2010-03-19 |
| Robert | Mochkovitch | Institute d'Astrophysique de Paris | 2010-03-16 | 2010-03-19 |
