The freshman series will return for a second season.
The news that Project Blue Book will be back for a 10-episode second season was announced by History during its Television Critics Association winter press tour Saturday.
The series is based on real-life investigations into UFOs conducted by the United States Air Force in the 1950s and 60s and stars Aidan Gillen (Game of Thrones) and Michael Malarkey (The Vampire Diaries).
According to The Hollywood Reporter, Project Blue Book averages 3.4 million viewers per episode after three days of delayed viewing, which makes it the most-watched new cable series of the 2018-19 season.
Project Blue Book was created by David O’Leary, who also serves as executive producer, and writer. Sean Jablonski serves as showrunner, executive producer, and writer, while Jack Rapke and Jackie Levine also exec produce.
“We are believers in Project Blue Book, and so is our audience, who has sparked a conversation about the hundreds of unsolved cases and our nation’s military response to UFOs that have remained relatively secret until now,” Eli Lehrer, executive vp and head of programming at History, said Sunday in a statement. “[Robert] Zemeckis, A+E Studios and our extraordinary creative team have shaped a compelling narrative that is the perfect blend of historical authenticity and entertainment that inspires curiosity in our viewers to learn more. We’ve touched on a very relevant topic and look forward to a second season.”