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 52 2025-01-22
Season 52 Episode
- Season 31 Infinite Secrets
- Season 31 Who Killed the Red Baron?
- Season 31 The Elegant Universe: Einstein's Dream (1)
- Season 31 The Elegant Universe: String's the Thing (2)
- Season 31 The Elegant Universe: Welcome to the 11th Dimension (3)
- Season 31 Wright Brothers' Flying Machine
- Season 31 Magnetic Storm
- Season 31 Volcano Above the Clouds
- Season 31 MARS Dead or Alive
- Season 31 Secrets of the Crocodile Caves
- Season 31 Dogs and More Dogs
- Season 31 Descent Into the Ice
- Season 31 Crash of Flight 111
- Season 31 Life and Death in the War Zone
- Season 31 Hunt for the Supertwister
- Season 31 World in the Balance: The People Paradox (1)
- Season 31 World in the Balance: China Revs Up (2)
- Season 31 Battle Plan Under Fire
NOVA - Season 31 Episode 3 The Elegant Universe: Einstein's Dream (1)
6.90 55 minutes Part 1, "Einstein's Dream," introduces string theory and shows how modern physics—composed of two theories that are ferociously incompatible—reached its schizophrenic impasse: One theory, general relativity, successfully describes big things like stars and galaxies, while another, quantum mechanics, is equally successful at explaining small things like atoms and subatomic particles. Albert Einstein, the inventor of general relativity, dreamed of finding a single theory that would embrace all of nature's laws. But in this quest for the so-called unified theory, Einstein came up empty-handed, and the conflict between general relativity and quantum mechanics has stymied all who've followed. That is, until the discovery of string theory.
