Top Sci-Fi TV Shows Like The Expanse to Watch in 2026

"Battlestar Galactica is the rare reboot that outshines its source, and itu2019s the gold standard for space politics and gritty, ensemble-driven drama. If you loved the tense, morally grey universe of The Expanse, this showu2019s relentless humanity-versus-machine survival saga will grab you from episode oneu2014and refuse to let go."

"For All Mankindu2019s what-if space race is masterclass alternate history, mixing bold u2018what ifsu2019 with jaw-dropping character arcs and political intrigue that rivals The Expanse. Its sprawling vision of humanityu2019s expansion across the solar system is no less ambitiousu2014and no less addictive."

"No list is complete without a proper nod to the sourceu2014The Expanse itself. If youu2019ve only dabbled, go back and finish what you started; this is the show that treats its audience like adults, and the payoff is worth every second."

"Dark Matteru2019s crew of amnesiac antiheroes is a sci-fi treat for fans who love layered alliances, cryptic mysteries, and the question u2018Who can we trust?u2019 The showu2019s breakneck twists and found-family dynamic will scratch your Expanse itch in all the best ways."

"Epic, visually stunning, and sprawling in scope, Foundation takes Asimovu2019s legendary novels and crafts a galaxy-spanning chess game of power and prophecy. If world-building and existential stakes are your jam, this is a must-add to your queue."

"The 100u2019s relentless, high-stakes survival saga plunges its characters into impossible moral dilemmasu2014sound familiar? Its brutal, evolving alliances and ambitious plot arcs make this a wild and satisfying ride for fans of The Expanseu2019s fraught politics."

"Altered Carbon is pure cyberpunk noir, fusing mind-bending tech, gritty action, and breathtaking visual design. Itu2019s a heady shot of sci-fi for anyone craving mature themes, twisty mysteries, and world-building that dares you to think."

"The Mandalorian isnu2019t just for Star Wars diehardsu2014its frontier storytelling, cinematic visuals, and tight, ensemble-focused arcs will appeal to anyone who loves space sagas with heart and swagger. Plus: Grogu. Enough said."

"Ridley Scottu2019s Raised by Wolves is cerebral, atmospheric science fiction at its weirdest and most beautiful. Its exploration of faith, AI, and human nature lands it squarely in the lane for viewers who crave ambitious, challenging narratives."

"Discovery energizes the Star Trek formula with serialized drama, diverse casting, and eye-popping production values. Itu2019s a thrill for anyone who wants their sci-fi universe messy, modern, and full of moral quandaries."