414px-USS_Charlotte_(SSN_766)_steams_in_a_close_formation_at_RIMPAC_2014.jpg
Fonte: https://commons.wikimedia.org/wiki/File:USS_Charlotte_(SSN_766)_steams_in_a_close_formation_at_RIMPAC_2014.jpg
Criador: Mass Communication Specialist 1st Class Dustin Kelling
Licença: Domínio público.

750px-DeepRover_Modell.jpg
Fonte: https://commons.wikimedia.org/wiki/File:DeepRover_Modell.jpg
Criador: TauchtWas
Licença: CC BY-SA 3.0

800px-Hydrolab_interior.jpg
Fonte: https://commons.wikimedia.org/wiki/File:Hydrolab_interior.jpg
Criador: OAR/National Undersea Research Program (NURP); Fairleigh Dickinson Univ.
Licença: Domínio público.

800px-HYDROLAB's_wet_porch.jpg
Fonte: https://commons.wikimedia.org/wiki/File:HYDROLAB%27s_wet_porch.jpg
Criador: OAR/National Undersea Research Program (NURP)
Licença: Domínio público.

800px-US_Navy_110326-N-7058E-029_USS_Connecticut_(SSN_22)_surfaces_through_the_ice_in_the_Arctic_Ocean_during_Ice_Exercise_(ICEX)_2011.jpg
Fonte: https://commons.wikimedia.org/wiki/File:US_Navy_110326-N-7058E-029_USS_Connecticut_(SSN_22)_surfaces_through_the_ice_in_the_Arctic_Ocean_during_Ice_Exercise_(ICEX)_2011.jpg
Criador:U.S. Navy photo by Lt. Ed Early
Licença: Domínio público.

9417284762_cc12034db2_z.jpg
Fonte: https://www.flickr.com/photos/defenceimages/9417284762/
Criador: Defence Images
Licença: CC BY-SA 2.0

Deap-Sea-Diver.jpg
Fonte: https://commons.wikimedia.org/wiki/File:US_Navy_101026-N-8824M-040_Navy_Diver_2nd_Class_Shane_Olson_goes_through_pre-diving_inspections_while_piloting_the_Atmospheric_Diving_Suit_2000_abo.jpg
(Face was censored afterwards)
Criador: U.S. Navy photo by Mass Communication Specialist 3rd Class Spencer Mickler
Licença: Domínio público.

pexels-photo-842153.jpg
Fonte: https://www.pexels.com/photo/low-angle-photo-of-staircase-842153/
Criador: Ngai Man Yan
Licença: Pexels License

u-boat-1659909_960_720.jpg
Fonte: https://pixabay.com/de/u-boot-hamburg-innenraum-1659909/
Criador: atremo
Licença: CC0 1.0

Créditos ao Dr Ore pelo compilado.