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The Most Exciting Sci-Fi Series Ever Made

Updated February 19, 2021 5.8k votes 401 voters 3.9k views85 items

List RulesOnly science fiction (not fantasy) television series that historically offer galactic levels of excitement.

The top sci-fi TV shows ever aired are some of the most exciting and thought-provoking to watch on television, but which is the best of them all? Determining which science fiction TV series is the best isn't an easy task given the plethora of options available, but this list might make it just a bit easier. These days, with the use of digital streaming, more and more shows people have forgotten are being rewatched, checked out for the first time, or even remade into new classics for new generations to enjoy, but which of these sci-fi shows is the best of them all in terms of excitement?

Would something newer like Star Trek: Discovery beat out a classic on this list like Star Trek: The Original Series, the very show that inspired it? For a science fiction series to be truly exciting, it has to be the kind that depicts more than just cool new tech or rapid-fire sci-fi action scenes - it needs to show a conflict between one or more groups of people, aliens, robots, or whatever in which survival is key. An exciting sci-fi show gets the audience has to get invested in the story.

The only way to find out which are the best is to vote up your favorite sci-fi series below, but remember, this list is all about excitement! Which series is more exciting than the one below it? Don't forget to add your favorite sci-fi show to the list if it's missing and vote for your favorites below!

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  • Firefly1
    161
    79

    Firefly

    Nathan Fillion, Gina Torres

    Premiered2002

    Firefly is an American space western science fiction drama television series created by writer...  more
  • Battlestar Galactica2
    147
    74

    Battlestar Galactica

    Edward James Olmos, Mary McDonnell

    Premiered2004

    Battlestar Galactica (Sc-Fi, 2004) is an American military science fiction television series...  more
  • Star Trek: The Next Generation3
    142
    70

    Star Trek: The Next Generation

    Patrick Stewart, Brent Spiner

    Premiered1987

    Star Trek: The Next Generation is an American science fiction television series created by...  more
  • Stargate SG-14
    124
    59

    Stargate SG-1

    Richard Dean Anderson, Michael Shanks

    Premiered1997

    Stargate SG-1 is an adventure and military science fiction television series and part of...  more
  • The Mandalorian5
    76
    21

    The Mandalorian

    Pedro Pascal, Gina Carano

    Premiered2019

    The Mandalorian (Disney+, 2019) is an American space opera web television series set in the...  more
  • Fringe6
    105
    46

    Fringe

    Anna Torv, Joshua Jackson

    Premiered2008

    Fringe (Fox, 2008) is an American science fiction television series created by J. J. Abrams,...  more
  • Star Trek: The Original Series7
    120
    60

    Star Trek: The Original Series

    William Shatner, Leonard Nimoy

    Premiered1966

    Star Trek is an American science fiction television series created by Gene Roddenberry that...  more
  • The Expanse8
    106
    60

    The Expanse

    Thomas Jane, Steven Strait

    Premiered2015

    The Expanse (Syfy, 2015) is an American science fiction television series developed by Mark...  more
  • Babylon 59
    88
    46

    Babylon 5

    Jerry Doyle, Mira Furlan

    Premiered1994

    Babylon 5 (Syndicated, 1994) is an American space opera television series created by writer...  more
  • Farscape10
    86
    47

    Farscape

    Ben Browder, Claudia Black

    Premiered1999

    Farscape is an Australian/American science fiction television series, produced originally for...  more
  • Doctor Who11
    113
    74

    Doctor Who

    Christopher Eccleston, David Tennant

    Premiered1963

    Doctor Who (BBC, 2005) is a British science-fiction television show created by Sydney Newman,...  more
  • Star Trek: Deep Space Nine12
    83
    46

    Star Trek: Deep Space Nine

    Avery Brooks, Rene Auberjonois

    Premiered1993

    Star Trek: Deep Space Nine is a science fiction television series set in the Star Trek...  more
  • Stargate Atlantis13
    101
    64

    Stargate Atlantis

    Joe Flanigan, Rachel Luttrell

    Premiered2004

    Stargate Atlantis is a Canadian-American adventure and military science fiction television...  more
  • Stranger Things14
    89
    54

    Stranger Things

    Winona Ryder, David Harbour

    Premiered2016

    Stranger Things (Netflix, 2016) is an American science fiction-horror web television series...  more
  • Star Trek: Voyager15
    78
    45

    Star Trek: Voyager

    Kate Mulgrew, Robert Beltran

    Premiered1995

    Star Trek: Voyager is a science fiction television series, set in the Star Trek universe. The...  more
  • Battlestar Galactica16
    73
    44

    Battlestar Galactica

    Edward James Olmos, Mary McDonnell

    Premiered1978

    Battlestar Galactica is an American science fiction television series, created by Glen A....  more
  • Eureka17
    64
    38

    Eureka

    Colin Ferguson, Salli Richardson-Whitfield

    Premiered2006

    Eureka (Syfy, 2006) is an American science fiction television series created by Andrew Cosby...  more
  • Lost in Space (2018-18
    65
    40

    Lost in Space (2018-

    Molly Parker, Toby Stephens

    Premiered2018

    Lost in Space (Netflix, 2018) is an American science fiction web television series created by...  more
  • Star Trek: Enterprise19
    84
    60

    Star Trek: Enterprise

    Scott Bakula, John Billingsley

    Premiered2001

    Star Trek: Enterprise is a science fiction TV series and a prequel to the original Star Trek....  more
  • Agents of S.H.I.E.L.D.20
    66
    43

    Agents of S.H.I.E.L.D.

    Clark Gregg, Ming-Na Wen

    Premiered2013

    Marvel's Agents of S.H.I.E.L.D., or simply Agents of S.H.I.E.L.D., is an American television...  more
  • Westworld21
    64
    41

    Westworld

    Evan Rachel Wood, Thandie Newton

    Premiered2016

    Westworld (HBO, 2016) is an American science fiction western thriller television series...  more
  • Quantum Leap22
    59
    41

    Quantum Leap

    Scott Bakula, Dean Stockwell

    Premiered1989

    Quantum Leap is an American television series that originally aired on NBC for five seasons,...  more
  • Warehouse 1323
    51
    34

    Warehouse 13

    Eddie McClintock, Joanne Kelly

    Premiered2009

    Warehouse 13 is a U.S. television science fiction series that premiered on July 7, 2009, on...  more
  • Orphan Black24
    46
    30

    Orphan Black

    Tatiana Maslany, Dylan Bruce

    Premiered2013

    Orphan Black is a Canadian science fiction television series created by screenwriter Graeme...  more
  • Altered Carbon25
    64
    51

    Altered Carbon

    Joel Kinnaman, Renée Elise Goldsberry

    Premiered2018

    Altered Carbon is an American science fiction television series created by Laeta Kalogridis,...  more