2024: Targeted launch date June 2016: Decision from Science Programme Committee (SPC) on approval for implementation 2014-2016: Definition study February 2014: PLATO selected by the SPC as the third medium-class mission in ESA's Cosmic Vision Programme 2013: Assessment study October 2011: PLATO not selected for the M1 or M2 slot; proceeded to candidacy for M3 launch opportunity February 2011: PLATO Mission Consortium for the provision of the payload and science ground segment components selected by SPC February 2010: Proceeded (with Euclid and Solar Orbiter) to more detailed assessment phase 2008: Invitation to Tender issued to industry 2008: Concurrent Design Facility (CDF) study 2007: Proposed as an M-Class mission in response to Call for Proposals