Thales Alenia Space has signed a contract with OHB System AG for the new ESA programme PLATO (PLAnetary Transits and Oscillations of stars) . OHB System AG will be the prime contractor with Thales Alenia Space as a partner. PLATO will be the third medium-class (M3) science mission in ESA’s Cosmic Vision Program, following Solar Orbiter (M1) and Euclid (M2), and preceding Ariel (M4). The satellite will be launched in 2026 for an initial mission length of 4.5 years.