Just watched the miniseries Ascension (2014) on Netflix. It starts off interesting – a crew of 600 men, women and children leave earth on a secret mission abroad a spaceship (a self-contained bio universe) that has been travelling for last 50 years on a 100-year mission to a distant galaxy – to save the human race from a possible world destruction due to the cold war in the1960s. The first generation were the heroes, the third generation will be the pioneers who found a new world – that leaves the in-between generation lost, opted in by their parents without having a say, living a whole life inside a tin can in the space with no future.
The miniseries of 6 episodes losses its mojo after the 3 episode when we are revealed the big conspiracy a bit early and then it goes into paranormal and political drama territories.
Ascension = Star Trek + WestWorld (2016) + The Truman Show (1998)
Available on Netflix India.
Follow-up August 2018: In the real world MIT Technology Review has this article (the original paper by F. Marin, C. Beluffi) which says at the present speed of fastest travel known to men, it will take 6300 years to reach our nearest star Proxima Centauri. Obviously, this will need the human crew to procreate on the way and give birth to about 90 human generations needed. To achieve statistical 100% in this, the initial crew should contain at least 98 settlers or 49 breeding pairs on a one-way journey just in this TV series.