BEIJING — On 25 November 2020, Prof. Dr. Heike Rauer (German Aerospace Center, DLR) gave an online seminar on the PLATO mission of the European Space Agency. Prof. Rauer's lecture represented the fourth of the ISSI-BJ "On Things to Come" series of webinars that addresses ongoing as well as future space missions by inviting renowned scientists from different countries, institutes, and space agencies.