<P> The season premiered on September 19 , 2017 , at ArcLight Hollywood , before debuting on CBS on September 24 . The premiere episode was also made available on CBS All Access , where the rest of the 15 - episode season stream weekly until February 11 , 2018 . The season 's release has led to record subscriptions for All Access , and positive reviews from critics who highlighted Martin - Green 's performance , as well as the series ' production value and its new additions to Star Trek canon . A second season was ordered in October 2017 . </P>
<P> The season premiered on September 19 , 2017 , at ArcLight Hollywood , before debuting on CBS on September 24 . The premiere episode was also made available on CBS All Access , where the rest of the 15 - episode season stream weekly until February 11 , 2018 . The season 's release has led to record subscriptions for All Access , and positive reviews from critics who highlighted Martin - Green 's performance , as well as the series ' production value and its new additions to Star Trek canon . A second season was ordered in October 2017 . </P>
how many episodes star trek discovery season one
how many episodes star trek discovery season one
15
15