2015 Event Scientists using geophysical methods to map underground archaeological sites have discovered a set of stone monoliths buried 3 feet deep near Stonehenge; the stones are estimated to be 4,500 years old 2014 Event An Australian geophysical company has identified a large aluminum deposit that appeared around the time of the Malaysian Air Flight 370 disappearance on March 8th, suggesting that the plane may have crashed in the Bay of Bengal and not the Indian Ocean 1968 Event Orbiting Geophysical Observatory 5 launched 1964 Event NASA launches its 1st Orbital Geophysical Observatory (OGO-1) 1957 Event International Geophysical Year begins, ends December 31, 1958
