CNES issues an international call for Guest Investigators on PICARD, a space mission that is dedicated to the observation of the Sun and its impact on climate change. This call is open to all scientists, and covers the use of existing data as well as the acquisition of new data.
The due date for proposal submissions is: 20 June 2012.
Full details at http://smsc.cnes.fr/PICARD/A_research_announcement.htm