Geoffrey Smith, Professor, Florida International University, USA. He has visited Comète for three months from the end of August until the end of December, 2011.
Moreno Falaschi, Professor, University of Siena, Italy. He has visited Comète for one month in November 2011.
Vladimiro Sassone, Professor, University of Southampton, UK. He has visited Comète for one month in December 2011.