ESA's ExoMars programme investigates whether life has ever existed on Mars through complementary orbital and surface missions. The first mission launched in 2016 with the Trace Gas Orbiter and the Schiaparelli landing demonstrator; the orbiter investigates trace atmospheric gases and is intended to relay data for the surface mission. The Rosalind Franklin rover is a separate future mission, targeting launch in 2028, with instruments for exobiology and geochemistry. The programme's orbital achievements therefore precede its planned rover exploration.