The Race To The Center
To be clear, the race to the core of the Earth is far from finished. The International Ocean Discovery Program, which is still investigating what is under the seabed, has drilling platforms throughout the seas. They must contend with harsh temperatures and malfunctioning equipment to discover what mysteries it contains.
Below The Water
They do, however, undertake excursions below the sea to accomplish things other than reach the mantle. For one instance, when a two-man submersible was dropped into the Antarctic on an exploration expedition, it literally plunged into the unknown. The crew members’ goal was to travel further beneath the sea towards the South Pole than anybody had ever gone before. What did they discover down there? Let us just say that they had a peek of a world that no one else has ever seen before.