[The launch of the second phase of the ExoMars mission, scheduled for 2018 has been pushed back to 2020.] (…)
The second ExoMars mission involves a Russian-led surface platform and a European-led rover, also to be launched on a Proton from Baikonur. Russian and European experts made their best efforts to meet the 2018 launch schedule for the mission, and in late 2015, a dedicated ESA-Roscosmos Tiger Team, also including Russian and European industries, initiated an analysis of all possible solutions to recover schedule delays and accommodate schedule contingencies.
The Tiger Team presented its final report during a meeting of the Joint ExoMars Steering Board (JESB) held in Moscow. Having assessed the possible ways to ensure successful mission implementation, the JESB concluded that, taking into account the delays in European and Russian industrial activities and deliveries of the scientific payload, a launch in 2020 would be the best solution.
ESA Director General Johann-Dietrich Woerner and Roscosmos Director General Igor Komarov discussed the ExoMars 2018 situation. After considering the Tiger Team report and the JESB recommendations, they jointly decided to move the launch to the next available Mars launch window in July 2020… [More at link]