The US scientist on being the first Black woman to descend to Earth’s deepest point, ignoring career advice – and what really happened to the Titan submersible
he American oceanographer Dawn Wright is the first Black person and only the 27th human to have been to the deepest spot on the planet. Challenger Deep, at the southern end of the Mariana Trench in the western Pacific Ocean, is 10.9km below sea level – deeper than Mount Everest is tall. Wright’s summer 2022 descent is documented in a new book,, who was also the craft’s pilot.
Then we undertook multibeam sonar mapping from the support ship to give us a fresh map of the entirety of Challenger Deep and the Mariana Trench. That data has been deposited withIt was about a 10-hour round trip with two-and-a-half hours at the bottom to observe and test the prototype instrument, which we did over an area of a few hundred square metres. The spherical cockpit is a tight space and Victor and I sat with everything that we needed within reach.
My first submersible dive was in 1991 in a research vessel called Alvin. It was to make observations of the geology and biology and map the distribution of hydrothermal vents in a segment of the East Pacific Rise, the seafloor spreading zone in the Pacific Ocean. It was one of the first studies applying GIS to seabed mapping anywhere. You can get lost in a map of the ocean floor.
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