Syfy says the first episode of its futuristic space thriller The Expanse was sampled by 1.5 million viewers in the first week after its online debut last month (Monday-Sunday, November 23-29). And undoubtedly that number will grow.

The first episode will continue to be available online until it makes its linear premiere on Syfy on Monday, December 14. It can be seen on-demand at Syfy.com, the Syfy Now App, Hulu, Amazon, Google Play, Vudu, iTunes, Playstation, Xbox, Facebook, YouTube, IGN, IMDb and Roku platforms,. Syfy also has partnered with Wikia, Good Reads and Crave Online to host the series premiere along with original custom content.

Set 200 years in the future, The Expanse follows the case of a missing young woman that brings a hardened detective (Thomas Jane) and a rogue ship’s captain (Steven Strait) together in a race across the solar system that will expose the greatest conspiracy in human history. The series is based on the New York Times bestselling book series collectively known as The Expanse, written by Daniel Abraham and Ty Franck (under the pen name James S.A. Corey).

The series will premiere over two nights on December 14-15 at 10 PM following the premiere of Syfy miniseries Childhood’s End, which airs December 14-16 from 8-10 PM. The Expanse then airs in its regular Tuesday 10 PM time slot for the remainder of its 10-episode season.