aug 1, 1968 - Deep Sea Drilling Program
Description:
It is a 15-year expedition to take samples of the seafloor.
Link to picture:
http://oer2go.org:81/wikipedia_de_all_novid_2017-08/I/m/GlomarChallengerBW.JPG
Added to timeline:
Marine Biology Timeline
by Camryn Clarke
Date:
