<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 streamed weekly until February 11 , 2018 . The season 's release led to record subscriptions for All Access , and positive reviews from critics who highlighted Martin - Green 's performance , 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 streamed weekly until February 11 , 2018 . The season 's release led to record subscriptions for All Access , and positive reviews from critics who highlighted Martin - Green 's performance , the series ' production value , and its new additions to Star Trek canon . A second season was ordered in October 2017 . </P>
star trek discovery how many episodes in season 1
star trek discovery how many episodes in season 1
15
15