A collaboration between American provider Hulu and British Channel 4, The First is a drama series about the first human expedition to Mars. Or, more to the point, about the astronauts and ground support teams involved with the project. So far (I've watched five episodes, I think), it's compelling drama, mainly due to Sean Penn's and Natasha McElhone's performances.
The downside is availability. I subscribe to Hulu because I don't have a TV provider here in Bend (yet despite my paying a monthly fee, Hulu has decided that I still must sit through advertisements ). I'm not sure if it's available to non-subscribers.