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This spring, scientists will try to retrieve the deepest types of rock ever extracted from beneath the seabed.


 mantle crust Earth planet geology depth drilling rock mineral
One hundred and thirty metres below the sea bed of Singapore lies a most unusual construction site. Hundred of workers are carving out a series of enormous caverns in hard rock. The work is laborious, expensive and will take years to complete, but eventually they hope to create a space large enough to store the equivalent of nine million barrels of oil. Why? Because Singapore, all 700 sq km of it, is running out of room. The company behind...


 underground Singapore future depth
Icy cold, pitch black and with crushing pressures - the deepest part of the ocean is one of the most hostile places on the planet. Only three explorers have made the epic journey there: 11km (seven miles) down to the bottom of the Pacific Ocean's Mariana Trench. As a new wave of explorers is gearing up to make this remarkable dive, take a look at the mysterious world that they will be plunging into.


 submarine depth ocean diving pressure