Cérès will sail during the weeks of July and August from the Baltic sea to Norway. Our route will take us to Saint-Petersburg, the great Russian lakes, the White Sea, the Barents sea and North Cape. We expect to arrive in Tromsoe in the first half of September.


You may learn regularly, I hope, how we progress by looking on our blog (in French for most of it) on





Cérès along the Atlantic coast of Spain


What else to expect on these pages:

Texts that I wrote since 2012. These reflexions have often been in response to sollicitations I received to express myself either as president of the Swiss Academy of Natural Sciences (that I presided between 2012 and 2015) or as president of the Swiss Academies of Arts and Sciences (that I presided between 2013 and 2015) or as president of the European Astronomical Society(that I preside since 2010).

These pages complement  those on that descibe the activity of our Wineyard in Perroy on the shore of lake Geneva as well as some of our sailing tours on Cérès, our sailing boat.