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- 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 24 Einstein Revealed
- Season 24 Lost City of Arabia
- Season 24 Three Men and a Balloon
- Season 24 Secrets of Making Money
- Season 24 Top Gun Over Moscow
- Season 24 Shark Attack
- Season 24 Odyssey of Life: The Ultimate Journey (1)
- Season 24 Odyssey of Life: The Unknown World (2)
- Season 24 Odyssey of Life: The Photographer's Secrets (3)
- Season 24 Cracking the Ice Age
- Season 24 Kaboom!
- Season 24 Titanic's Lost Sister
- Season 24 Secrets Of Lost Empires (1): Pyramid
- Season 24 Secrets of Lost Empires: Stonehenge (1)
- Season 24 Secrets of Lost Empires: Inca (2)
- Season 24 Secrets of Lost Empires: Obelisk (3)
- Season 24 Secrets of Lost Empires: Colosseum (4)
- Season 24 Hunt for Alien Worlds
- Season 24 Curse of T.rex
- Season 24 Cut to the Heart
- Season 24 Kingdom of the Seahorse
NOVA - Season 24 Episode 3 Three Men and a Balloon
6.85 55 minutes One of the final aeronautics challenges left in the world today does not involve the use of a plane, a rocket, or even an engine. No one has yet been able to circumnavigate the earth in a balloon. Any team attempting the feat would have to fly higher than most planes ever fly and would need a passenger capsule that could both offer protection from extreme cold and carry the proper navigation and life support equipment. Depending on the powerful jet stream to propel them, crew members would have to plot their course carefully and plan their schedule to coincide with the most advantageous winds. Even landing would be a risky venture. This program follows a team of three adventurers as they attempt to make just such a journey.
