I got a question for you: The first episode of Star Trek: Discovery aired in a "preview broadcast" on CBS in the United States on September 24, as well as being made available with the second episode on CBS All Access. Subsequent first-run episodes, making up the first chapter of the season, will be streamed weekly on All Access through November 12. The second chapter will begin streaming January 2018.

Based on this passage, when does next episode of star trek discovery come out?
Let's think first:
The relevant information to answer the above question is: The second chapter will begin streaming January 2018.
Therefore, the answer is January 2018.