Documentary

The Best Seasons of Horizon

Every season of Horizon ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Horizon!

Binge this in Unknown•Peaking at 10.0/10

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

Airs on

Season 62

1 Episodes

First Aired: Apr 2026

8.7/ 10

Average Rating

Best episodeE1 · Artemis: To the Moon and Back 8.7

Season 22

16 Episodes

First Aired: Jan 1985

8.3/ 10

Average Rating

Best episodeE12 · The Food Allergy War 8.4

Season 15

24 Episodes

First Aired: Jan 1978

8.2/ 10

Average Rating

Best episodeE20 · The Beersheva Experiment 8.2

Other Seasons

Season 18

27 Episodes

First Aired: Jan 1981

8.1/ 10

Average Rating

Best episodeE9 · Gentlemen, Lift Your Skirts 8.6

Season 23

22 Episodes

First Aired: Jan 1986

8.1/ 10

Average Rating

Best episodeE3 · Bitter Cold 8.1

Season 19

22 Episodes

First Aired: Jan 1982

8.0/ 10

Average Rating

Best episodeE22 · The Mysterious Mr. Tesla 10.0

Season 37

19 Episodes

First Aired: Jan 2000

8.0/ 10

Average Rating

Best episodeE15 · Valley of Life or Death 9.6

Season 8

32 Episodes

First Aired: Jan 1971

8.0/ 10

Average Rating

Best episodeE28 · The Crab Nebula 8.0

Season 11

33 Episodes

First Aired: Jan 1974

8.0/ 10

Average Rating

Best episodeE6 · The Writing on the Wall 9.2

#10

Season 49

13 Episodes

First Aired: Aug 2011

8.0/ 10

Average Rating

Best episodeE11 · Global Weirding 10.0

#11

Season 21

22 Episodes

First Aired: Jan 1984

7.8/ 10

Average Rating

Best episodeE19 · Global Village 8.4

#12

Season 14

23 Episodes

First Aired: Jan 1977

7.8/ 10

Average Rating

Best episodeE19 · The Sunspot Mystery 7.8

#13

Season 16

25 Episodes

First Aired: Feb 1979

7.8/ 10

Average Rating

Best episodeE20 · A Touch of Sensitivity 7.8

#14

Season 17

25 Episodes

First Aired: Jan 1980

7.8/ 10

Average Rating

Best episodeE24 · The Slatemakers 7.8

#15

Season 27

20 Episodes

First Aired: Jan 1990

7.8/ 10

Average Rating

Best episodeE18 · The Child Mothers 7.8

#16

Season 38

11 Episodes

First Aired: Jan 2001

7.7/ 10

Average Rating

Best episodeE2 · The Missing Link 8.5

#17

Season 47

14 Episodes

First Aired: Oct 2009

7.7/ 10

Average Rating

Best episodeE11 · To Infinity and Beyond 8.1

#18

Season 32

20 Episodes

First Aired: Jan 1995

7.6/ 10

Average Rating

Best episodeE9 · Icon Earth 7.6

#19

Season 34

15 Episodes

First Aired: Feb 1997

7.6/ 10

Average Rating

Best episodeE1 · Psychedelic Science 7.6

#20

Season 29

19 Episodes

First Aired: Jan 1992

7.5/ 10

Average Rating

Best episodeE5 · Malaria: Battle of the Merozoites 8.3

#21

Season 30

21 Episodes

First Aired: Jan 1993

7.5/ 10

Average Rating

Best episodeE14 · Ghosts in the Dinosaur Graveyard 7.5

#22

Season 45

17 Episodes

First Aired: Jan 2008

7.5/ 10

Average Rating

Best episodeE15 · Do You Know What Time It Is? 8.7

#23

Season 48

15 Episodes

First Aired: Sep 2010

7.5/ 10

Average Rating

Best episodeE3 · What Happened Before the Big Bang? 8.0

#24

Season 42

20 Episodes

First Aired: Jan 2005

7.4/ 10

Average Rating

Best episodeE3 · Einstein's Equation of Life and Death 8.2

#25

Season 39

18 Episodes

First Aired: Jan 2002

7.4/ 10

Average Rating

Best episodeE14 · Freak Wave 8.3

#26

Season 40

19 Episodes

First Aired: Jan 2003

7.4/ 10

Average Rating

Best episodeE4 · Dirty Bomb 8.0

#27

Season 46

18 Episodes

First Aired: Jan 2009

7.4/ 10

Average Rating

Best episodeE11 · How Violent Are You? 8.2

#28

Season 52

18 Episodes

First Aired: Aug 2014

7.4/ 10

Average Rating

Best episodeE1 · Should I Eat Meat? The Big Health Dilemma 9.0

#29

Season 50

16 Episodes

First Aired: Jul 2012

7.3/ 10

Average Rating

Best episodeE13 · Fracking: The New Energy Rush 8.1

#30

Season 44

9 Episodes

First Aired: Mar 2007

7.3/ 10

Average Rating

Best episodeE4 · Mad but Glad 7.8

#31

Season 59

4 Episodes

First Aired: Mar 2022

7.3/ 10

Average Rating

Best episodeE3 · Making Sense of Cancer with Hannah Fry 7.8

#32

Season 1

9 Episodes

First Aired: Feb 1964

7.3/ 10

Average Rating

Best episodeE1 · The World of Buckminster Fuller 7.5

#33

Season 2

24 Episodes

First Aired: Jan 1965

7.3/ 10

Average Rating

Best episodeE16 · Time Stood Still / Weighty Matters 7.3

#34

Season 58

4 Episodes

First Aired: Jan 2021

7.3/ 10

Average Rating

Best episodeE2 · The Secret Science of Sewage 7.6

#35

Season 36

14 Episodes

First Aired: Jan 1999

7.3/ 10

Average Rating

Best episodeE1 · From Here to Infinity 8.0

#36

Season 43

19 Episodes

First Aired: Jan 2006

7.2/ 10

Average Rating

Best episodeE11 · Nuclear Nightmares 8.4

#37

Season 41

18 Episodes

First Aired: Jan 2004

7.2/ 10

Average Rating

Best episodeE9 · Project Poltergeist 8.4

#38

Season 51

11 Episodes

First Aired: Aug 2013

7.2/ 10

Average Rating

Best episodeE7 · The Power of the Placebo 7.8

#39

Season 53

16 Episodes

First Aired: Mar 2016

7.1/ 10

Average Rating

Best episodeE6 · Should We Close Our Zoos? 8.0

#40

Season 54

15 Episodes

First Aired: Jan 2017

7.0/ 10

Average Rating

Best episodeE14 · Goodbye Cassini - Hello Saturn 8.3

#41

Season 55

13 Episodes

First Aired: Feb 2018

7.0/ 10

Average Rating

Best episodeE1 · My Amazing Brain: Richard's War 7.9

#42

Season 60

1 Episodes

First Aired: Jul 2024

7.0/ 10

Average Rating

Best episodeE1 · The Battle to Beat Malaria 7.0

#43

Season 56

6 Episodes

First Aired: Jan 2019

7.0/ 10

Average Rating

Best episodeE1 · We Need to Talk about Death 7.7

#44

Season 57

8 Episodes

First Aired: Jan 2020

7.0/ 10

Average Rating

Best episodeE6 · The Great British Intelligence Test 7.7

#45

Season 33

16 Episodes

First Aired: Jan 1996

6.9/ 10

Average Rating

Best episodeE16 · Noah's Flood 7.3

#46

Season 61

4 Episodes

First Aired: Aug 2025

6.9/ 10

Average Rating

Best episodeE2 · Disease X: Hunting the Next Pandemic 7.0

#47

Season 35

18 Episodes

First Aired: Feb 1998

6.7/ 10

Average Rating

Best episodeE8 · Mir Mortals 6.7

#48

Season 9

33 Episodes

First Aired: Jan 1972

6.3/ 10

Average Rating

Best episodeE15 · The Wizard Who Spat on the Floor 6.3

#49

Season 20

24 Episodes

First Aired: Jan 1983

3.3/ 10

Average Rating

Best episodeE4 · How Much Can You Drink? 5.5

#50

Season 31

21 Episodes

First Aired: Jan 1994

3.0/ 10

Average Rating

Best episodeE19 · Close Encounters 3.0

#51

Season 3

23 Episodes

First Aired: Jan 1966

N/A/ 10

Average Rating

#52

Season 4

23 Episodes

First Aired: Jan 1967

N/A/ 10

Average Rating

#53

Season 5

24 Episodes

First Aired: Jan 1968

N/A/ 10

Average Rating

#54

Season 6

37 Episodes

First Aired: Jan 1969

N/A/ 10

Average Rating

#55

Season 7

37 Episodes

First Aired: Jan 1970

N/A/ 10

Average Rating

#56

Season 10

32 Episodes

First Aired: Jan 1973

N/A/ 10

Average Rating

#57

Season 12

26 Episodes

First Aired: Jan 1975

N/A/ 10

Average Rating

#58

Season 13

30 Episodes

First Aired: Jan 1976

N/A/ 10

Average Rating

#59

Season 24

22 Episodes

First Aired: Jan 1987

N/A/ 10

Average Rating

#60

Season 25

25 Episodes

First Aired: Jan 1988

N/A/ 10

Average Rating

#61

Season 26

20 Episodes

First Aired: Jan 1989

N/A/ 10

Average Rating

#62

Season 28

23 Episodes

First Aired: Jan 1991

N/A/ 10

Average Rating