In 2025, US scientists poured 16,500 gallons of lye and bright pink dye into the Gulf of Maine, the first federally approved attempt to reverse the ocean's rising acidity
In 1970, Soviet scientists began drilling into the Kola Peninsula and eventually reached 12,262 metres — creating the deepest vertical borehole humans have ever made, yet barely scratching the surface of Earth’s crust
Scientists have now made the most comprehensive tally yet of deep-sea exploration — 43,681 dive records dating back to 1958 — and found that humans have directly seen less than 0.001% of the deep ocean floor, an area roughly the size of Rhode Island, leaving the vast seafloor across 66% of Earth’s surface essentially unobserved.