Event Brief
US Navy submarines generate oxygen to stay submerged
By The BriefBrief · Sources (1)
Filed: Sep 10, 2026 at 8:02 PM ET
Summary: The article explains how US Navy nuclear submarines can remain underwater for months without surfacing by generating their own oxygen. It describes producing oxygen by running electricity through purified fresh water to split molecules, keeping oxygen and venting hydrogen overboard.
WHO: US Navy nuclear submarines
WHAT: Submarines generate oxygen onboard by splitting purified fresh water using electricity, venting hydrogen overboard.
WHEN: Sep 10, 2026 at 7:18 PM ET
WHERE: USA
WHY: To keep the submarine supplied with oxygen while remaining submerged for extended periods without surfacing.
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