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News Release 14-015
Deep-diving sub Alvin cleared to return to service
Navy certification is final step in Alvin upgrade project
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![Artist's rendition of the newly upgraded Alvin, showing its improved interior layout.](/news/mmg/media/images/AlvinSub10.17.13_f.jpg)
Artist's rendition of the newly upgraded Alvin, showing its improved interior layout.
Credit: E. Paul Oberlander, WHOI
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![Researchers and the starboard profile of Alvin on the fantail of its support vessel](/news/mmg/media/images/graphics-alvin_360_w_skins-_dsc0763_b131fc1f-2d65-4867-84f7-862872c45424_f.jpg)
Starboard profile of Alvin on the fantail of its support vessel, the R/V Atlantis.
Credit: WHOI
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![Researchers work on Alvin off the stern of the R/V Atlantis during sea trials off San Diego.](/news/mmg/media/images/alvin_sea_trials_iia_02nov2013_110_4d0fd0e6-3710-41a8-835e-a68df886a5a6_f.jpg)
Alvin off the stern of the R/V Atlantis during sea trials in November 2013, off San Diego.
Credit: WHOI
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![Researchers testing Alvin off the R/V Atlantis at night](/news/mmg/media/images/Dive_4667_034_060_f.jpg)
Alvin: Explorer of the depths, with far-reaching discoveries from decades of service to its credit.
Credit: WHOI
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![Two technicians working on the new Alvin personnel sphere](/news/mmg/media/images/graphics-alvin_sphere_test_aivl-img_1175_55e9f6f6-301a-44be-8586-7c2a269a7f90_f.jpg)
A view of the newly built Alvin personnel sphere, pressure-tested for 6,500 meters down.
Credit: WHOI
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![Alvin leaving Woods Hole, Mass., facility](/news/mmg/media/images/graphics-AtlantisDeparts-DSC_0205_f.jpg)
Alvin as it leaves Woods Hole, Mass., for the U.S. West Coast, where it underwent sea trials.
Credit: WHOI
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