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Retired U.S. Navy Capt. Don Walsh, best known for his daring dive to the deepest spot on Earth, nearly 36,000 feet below the ocean’s surface, has died at age 92. Walsh was a co-pilot of the Trieste bathyscaphe, a deep submergence vehicle acquired by the Office of Naval Research (ONR) in 1958. Two years later, on January 23, 1960, Walsh and Swiss engineer Jacques Piccard, son of the inventor of the bathyscaphe, became the first humans to descend into the Challenger Deep, located in the Pacific Ocean’s Mariana Trench. “ONR sponsored the Trieste, but it was then-Lt. Don Walsh who made the very daring decision to make the first descent into the deepest spot of the earth’s ocean. Walsh was a Navy officer, a submariner, an adventurer, and an oceanographer. To his family, we extend our deepest condolences and gratitude for allowing him to explore, and share his extraordinary experiences and knowledge with us,” said Chief of Naval Research Rear Adm. Kurt Rothenhaus.

The Office of Naval Research's Propulsor Hydrodynamics and Hydroacoustics program explores science and technology related to the physics of fluid flow around propulsors to improve the Navy’s propulsor design capability for improved stealth, efficiency and mobility.

The High Energy Lasers Program is part of the Office of Naval Research's Naval Air Warfare and Weapons Department.

The Office of Naval Research's resilient structures research area endeavors to develop structural configurations, materials and technologies to enable self-sustainable, self-repairable and highly damage resistant structures.

The Office of Naval Research's multi-scale mechanics research area endeavors to develop multiscale and multiphysics mechanics theories that bridge the nano scale to the continuum scale to predict material and structural strength.

The Laser Weapons and Combat System Integration Program is part of the Office of Naval Research's Naval Air Warcraft and Weapons Department.

Code 35 Expeditionary Warfare is part of the Office of Naval Research's Naval Air Warfare and Weapons Department.

The Office of Naval Research's Advanced Ground and Amphibious Platforms program researches, develops and exploits science and technologies at the intersection of the mechanical, control and electronic system domains to enhance the maneuverability and mobility of ground and amphibious manned and unmanned platforms.

The Office of Naval Research's Subsurface Platform Science & Technology program is focused on preserving and advancing the advantage of U.S. Navy platforms over adversaries.

The Office of Naval Research's CAST program seeks to develop technologies to enable cooperative operations of unmanned maritime systems including unmanned underwater vehicles (UUVs), unmanned surface vessels (USVs) and weapons in a wide range of mission areas.