Euclid is a high-precision survey mission designed to answer fundamental questions on dark energy and dark matter. In October 2011, Euclid was selected by the Science Programme Committee as the second M-class mission in the Cosmic Vision plan 2015-2025, for a launch in the end of 2019.

　　The details regarding the Euclid mission and the Announcement of Opportunity are provided at: http://sci.esa.int/euclid-ils-2012

　　The deadline for submission of proposals is 12 April 2012, 12:00 CET.

　　

　　（Supplied by Office of International Cooperation）