Kola Superdeep Borehole
Since the team was able to reach down a distance that no man has dared to go before, there was obviously a lot of information they had collected over all these years. Information about this earth that these researchers were able to get all thanks to this borehole that was dubbed the Kola Superdeep Borehole. There were some newly discovered tiny fossils of marine plants at 4 miles deep.