Five Deeps Expedition dives the Challenger Deep four times
DSV Limiting Factor makes four dives to the bottom of the Challenger Deep between 28 April and 5 May 2019, with a fifth dive on 7 May to the nearby Sirena Deep. Reported maxima appear in expedition material as about 10,925 m and about 10,928 m. The significance is repeatability rather than any single number: a vehicle certified for routine full-depth operation changes what the hadal zone is for.
Historical — it happened, and the record is settled.
Subjects
- DSV Limiting Factor (Triton 36000/2) · vehicle · United States · not located
- Victor Vescovo · person · United States · not located
- Challenger Deep · site · Western Pacific Ocean - southern Mariana Trench
- Hadal Zone · ocean_zone · Global ocean - subduction trench systems · not located
Evidence
Partly verified — Core facts are sourced; some optional detail is deliberately absent.
Five Deeps Expedition - Challenger Deep dive series press release
DSV Limiting Factor (Triton 36000/2) completed four dives to the bottom of the Challenger Deep between 28 April and 5 May 2019 and one dive to the Sirena Deep on 7 May 2019, with maximum depths reported in expedition material as about 10,925 m and about 10,928 m. The vehicle was designed for repeated full-ocean-depth dives.
Five Deeps Expedition / Triton Submarines · 2019-05-13 · Partly verified
https://fivedeeps.com/wp-content/uploads/2019/05/FDE-Challenger-Release-FINAL-5132019.pdf
Recorded on DSV Limiting Factor (Triton 36000/2)
- HMS Challenger sounds the deep that will bear her name
- Trieste reaches the bottom of the Challenger Deep
- JAMSTEC's Kaiko reaches the Challenger Deep floor
- Multibeam survey reports a 10,984 m maximum sounding
- First solo crewed dive to the Challenger Deep
- So, How Deep Is the Mariana Trench? asks the question in print
- Five Deeps Expedition dives the Challenger Deep four times
- Submersible pressure transects across the Challenger Deep floor
- Revised depth of the Challenger Deep published
Related
Related because they share a subject in the Atlas — never because the text looks similar.
- Revised depth of the Challenger Deep published · 2021
- Submersible pressure transects across the Challenger Deep floor · 2020-06
- So, How Deep Is the Mariana Trench? asks the question in print · 2014
- First solo crewed dive to the Challenger Deep · 2012
- Multibeam survey reports a 10,984 m maximum sounding · 2010
- JAMSTEC's Kaiko reaches the Challenger Deep floor · 1995
- Trieste reaches the bottom of the Challenger Deep · 1960-01-23
- HMS Challenger sounds the deep that will bear her name · 1875