When does Ascension return?

Ascension is a 2014 science fiction mystery drama television miniseries which aired on CBC in Canada and Syfy in the United States. It consisted of six 43 minute episodes, grouped into three chapters of two episodes each. The story takes place aboard a generation ship launched in the 1960s and now half-way into its 100-year journey to Proxima Centauri. A murder on board sparks off a series of events that leads some of the crew to begin second-guessing their real mission.