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NOVA - Season 30 Episode 15 : Deep Sea Invasion (2021)
 
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Rated: 7.1 out of 10 with 69 votes.
In 1989 marine biologist Alexandre Meinesz went diving off southern France and was stunned by what he saw: a dense blanket of waving green fronds stretching around him in every direction on the seabed. At first Meinesz had no idea what it was. Then he made the alarming discovery that a tropical alga had taken root in the cold water of the Mediterranean, wiping out native sea life wherever it grew. "Deep Sea Invasion" follows Meinesz on his scientific detective hunt to discover the source of this deadly organism, his uphill battle to alert authorities to its danger, and the struggle to find a non-toxic way to control it.
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Seasons: 48Episodes: 911 7.1 TV-MA Trailer
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Main Actors:
TV Network:PBS
Release Date:Jan 01, 1970
Last Air Date:Apr 28, 2021
Number of Seasons:48
Number of Episodes:911
Genres:Documentary
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Season: 30
911 Episodes from Mar 03, 1974 until Apr 28, 2021
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NOVA - Season List:
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
1995-01-09
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
2021-01-14