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

The High Energy Lasers Program is part of the Office of Naval Research's Naval Air Warfare 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 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 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 Applied Physical Mathematics program focuses on new foundational theory and experimental approaches to areas concerning wave, energy, heat, and momentum dynamics.

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.

The Directed Energy Weapons (DEW) Program is part of the Office of Naval Research's Naval Air Warfare and Weapons Department.

The Directed Energy Weapons (DEW) Program is part of the Office of Naval Research's Naval Air Warcraft and Weapons Department.