Syfy won't renew its critically acclaimed sci-fi drama The Expanse for a fourth season.

That means July's season finale actually could be its series finale. However, Deadline reports producer Alcon Television Group plans to shop The Expanse elsewhere.

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An adaptation of Daniel Abraham and Ty Franck’s book series that began in 2011 with Leviathan Wakes, The Expanse is set 200 years in the future, in a colonized Solar System strained by political tensions between Earth, Mars and the asteroid belt. The drama follows disparate groups of politicians, activists, minors and military figures who are all irrevocably changed by their interactions with an alien protomolecule that can completely reshape reality and break the laws of physics.

According to Deadline, the cancellation is linked to the U.S. broadcast agreement with producer and financier Alcon, which grants Syfy only first-run rights, cutting the cable network out of much of the digital/streaming audience.

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While the series has been a critical hit, viewership for The Expanse has gradually declined across its three season run, averaging 1.37 million viewers in its debut season. That figure dropped to an average of 1.05 million in the second season; it now averages 1 million viewers, placing The Expanse behind such series as The Magicians, Krypton, and Happy!