1979 Event Kosmos 1076, 1st Soviet oceanographic satellite, launched 1978 Event U.S. Seasat 1, 1st oceanographic satellite, launched into polar orbit 1978 Event First dedicated oceanographic satellite, SEASAT 1, launched 1876 Event HMS Challenger returns from 128,000-km oceanographic exploration 1872 Event HMS Challenger sets sail on 3 -year world oceanographic cruise
