List server
Season
- Season 0 1999-07-13
- Season 1 1974-03-03
- Season 2 1974-11-03
- Season 3 1976-01-04
- Season 4 1977-01-05
- Season 5 1978-01-04
- Season 6 1979-01-04
- Season 7 1980-01-15
- Season 8 1981-01-06
- Season 9 1982-01-10
- Season 10 1983-01-18
- Season 11 1984-01-17
- Season 12 1985-01-15
- Season 13 1986-01-21
- Season 14 1987-01-20
- Season 15 1988-01-19
- Season 16 1989-01-17
- Season 17 1990-01-09
- Season 18 1991-01-08
- Season 19 1992-01-14
- Season 20 1993-01-05
- Season 21 1994-01-18
- Season 22 1995-01-08
- Season 23 1995-10-10
- Season 24 1996-10-01
- Season 25 1997-10-07
- Season 26 1998-10-06
- Season 27 1999-10-05
- Season 28 2000-10-24
- Season 29 2001-10-02
- Season 30 2002-09-03
- Season 31 2003-09-30
- Season 32 2004-09-28
- Season 33 2005-09-20
- Season 34 2006-09-05
- Season 35 2007-10-09
- Season 36 2008-10-07
- Season 37 2009-10-06
- Season 38 2010-10-19
- Season 39 2011-09-07
- Season 40 2012-10-10
- Season 41 2013-09-11
- Season 42 2014-09-10
- Season 43 2015-09-16
- Season 44 2016-09-07
- Season 45 2018-01-10
- Season 46 2019-01-02
- Season 47 2020-02-05
- Season 48 2021-01-13
- Season 49 2022-02-01
- Season 50 2023-02-01
- Season 51 2024-01-31
Season 51 Episode
- Season 48 Secrets in Our DNA
- Season 48 Beyond the Elements: Reactions
- Season 48 Beyond the Elements: Indestructible
- Season 48 Beyond the Elements: Life
- Season 48 Looking for Life on Mars
- Season 48 Picture a Scientist/ Search Engine Breakdown
- Season 48 Reef Rescue
- Season 48 Fighting for Fertility
- Season 48 Hindenburg: The New Evidence
- Season 48 Great Electric Airplane Race
- Season 48 Ship That Changed the World
- Season 48 Bat Superpowers
- Season 48 The Cannabis Question
- Season 48 Particles Unknown
- Season 48 Arctic Drift
- Season 48 Edible Insects
- Season 48 NOVA Universe Revealed: Age of Stars
- Season 48 NOVA Universe Revealed: Milky Way
- Season 48 NOVA Universe Revealed: Alien Worlds
- Season 48 NOVA Universe Revealed: Black Holes
- Season 48 NOVA Universe Revealed: Big Bang
- Season 48 High-Risk High-Rise
- Season 48 Butterfly Blueprints
- Season 48 Alaskan Dinosaurs
- Season 48 Ancient Maya Metropolis
NOVA - Season 48 Episode 23 Butterfly Blueprints
6.83 55 minutes The hidden scientific secrets of butterflies reveal them to be more inventive and resilient than we ever imagined. Follow their extraordinary life cycle and migrations to tropical rainforests, windswept prairies, and even inside a chrysalis as it’s being spun.
