Has Anyone Been to the Bottom of the Mariana Trench?



Yes, and today more people have been to the bottom of the Mariana Trench than have walked on the Moon. Twelve people walked on the Moon between 1969 and 1972. The deepest spot in the ocean, the Challenger Deep, got its first two visitors in 1960, when Jacques Piccard and Don Walsh rode the bathyscaphe Trieste down almost 11 km (about 35,800 ft). Nobody had even been to space yet.

Then nobody went back down for 52 years. In 2012 James Cameron dove alone in Deepsea Challenger. In 2019 Victor Vescovo’s sub Limiting Factor, built to dive again and again, started carrying people down. On June 7, 2020 astronaut Kathy Sullivan, the first American woman to walk in space, became the 8th, and on June 26, 2020 the 13th person reached the bottom: one more than ever walked on the Moon. By 2022 at least 27 people had been there.

Why so few? The pressure at the bottom is over 1,000 times the pressure at sea level, about the weight of a small car on every fingertip. And the Moon? Nobody has walked on it since December 1972.

Season 2 of QuirkScience goes to the bottom of the ocean. Next: the deepest fish ever filmed.

Sources:
People who reached the Challenger Deep:
Apollo 17, the last moonwalk (NASA):
Trieste’s 1960 dive, 20 minutes on the bottom (US Navy History):
Water pressure at ocean depths, about 1,080 atmospheres in the Mariana Trench (NOAA PMEL):

#science #ocean #marianatrench #moon #deepsea #quirkscience

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