When does Star Trek: Discovery return?

Star Trek: Discovery premiered on September 24, 2017, on CBS and CBS All Access (later rebranded as Paramount+) It is the seventh Star Trek series and the first since Enterprise concluded in 2005. Sonequa Martin-Green stars as Michael Burnham, a science specialist on the USS Discovery. At the end of the second season, Discovery travels to the 32nd century, which is the setting for subsequent seasons. The series began an expansion of the franchise, leading to multiple new series.
The series begins around ten years before the events of Star Trek: The Original Series. Commander Michael Burnham's recklessness starts a war between the United Federation of Planets and the Klingon Empire. She is court-martialed, demoted, and reassigned to the USS Discovery, which has a unique means of propulsion called the "Spore Drive"