An image taken from video issued by Nekton shows a submersible from the vessel the Ocean Zephyr during a descent into the Indian Ocean off Alphonse Atoll near the Seychelles, Tuesday March 12, 2019. Members of the British-led Nekton research team boarded two submersible vessels and descended into the waters off the Seychelles on Tuesday, marking a defining moment in their mission to document changes to the Indian Ocean. The submersibles will be battling strong undersea currents and potentially challenging weather conditions as they survey the side of an undersea mountain off Alphonse Atoll. (Nekton via AP)
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