Today's military submarines often run on nuclear power, which keeps them from having to put into port every few days for fuel ...

A French nuclear-powered attack submarine, the FS Tourville, surfaced in Halifax, Nova Scotia earlier this week, sparking baseless rumors it was in response to Donald Trump ’s annexation threats ...

They can search, track, and engage both land and sea vessels while staying hidden for extended periods — some of the most advanced nuclear submarines can dive deep into the ocean for months ...

and can dive to a depth greater than 350 meters (Bruno Heluin/Linkedin) “A pleasure to welcome French submarine #Tourville to Halifax. Allies and friends working together. Enjoy your stay ...

The USS Nautilus was the world's first nuclear-powered submarine. It participated in scientific and military operations ...

If it is red, that hatch is open. When you are diving, you want what's called a green board." Compressed air had many crucial jobs on a submarine. It started the engines, fired torpedoes ...

This is a much more common speed for a personal submarine, as they're not typically designed to be fast and are more about recreational diving to see the undersea environment.

Tears of the Kingdom has shared the efficient submarine they built in-game using the popular Zonai technology, and for a game that doesn’t allow Link to dive underwater, it’s an impressive feat.