12,000 feet down, life is erupting. Alvin, a deep-sea mechanized probe, makes a voyage some 12,000 feet underwater to explore the Azores, a constantly-erupting volcanic rift between Europe and North America.
2005
2004
1961
1922
1956
2013
2019
1991
1978
1990
2015
1953
2006
2018
1965
1966
2016