05/2018: Launch window of the 2018 mission. Cruise duration estimated to 9 months.

03/14/2016: Launch of the 2016 mission with an arrival in October 2016.

09/2014: ExoMars-2018 system preliminary Design Review (PDR) in the framework of ESA - ROSCOSMOS cooperation.

End of 2013: System Critical Definition Review (CDR) of ExoMars EDM 2016.

12/2011: Withdrawal of NASA in the ExoMars program and beginning of cooperation between ESA and ROSCOSMOS.

12/2010: ExoMars System Preliminary Design Review (PDR) in the context of the NASA - ESA cooperation. Complement of the PDR due to the new mission.

12/2010: Choice of the Payload instruments of the lander.

07/2010: Choice of the Payload instruments of the satellite, called Trace Gaz Orbiter (TGO).

December 2009: The ESA Counsil ratifies the redefinition of ExoMars missionand the cooperation with NASA.

07-10/2009: ESA and NASA establish a joint Mars exploration initiative. Exomars Mission is redefined.

The decision, taken at an ESA Council meeting, foresees a Mars Orbiter with a small static lander, to launch in 2016, and a landing, by NASA, of a European rover on Mars with a second mission in 2018.

04/2009: Payload Confirmation Review 2 (PCR2). Selection of the instruments function of the PDR results.

10/2008-03/2009: Preliminary Design Review (PDR) for each instrument

11/2008: ExoMars System Preliminary Design Review (PDR Agency level)

11-12/2007: Baseline Confirmation Review (BCR)

05-06/2007: Implementation Review (IRev)

April 2007: System Requirement Review (SRR)

01-03/2007: Payload Confirmation Review (PCR)

Its goal was to estimate:

• The scientific value of each instrument
• The technological maturity of each instrument
• The interest, at national level, of financing the different candidate instruments