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'So little we know': in submersibles revealing the deep sea

OceanX's mission off Sulawesi island aims to discover new species and plastic-eating microbes while collecting samples to address ocean threats like pollution and warming.

  • This month AFP boarded one of OceanX's two submersibles on the OceanXplorer, a non-profit backed by billionaire Ray Dalio and his son, for a voyage over a seamount chain off Sulawesi, Indonesia.
  • Large parts of the deep sea remain unmapped, motivating scientists aboard OceanXplorer to search for new species, plastic-eating microbes and compounds with medical potential this month.
  • The OceanXplorer carries labs for genetic sequencing, a helicopter and an ROV rated to 6,000 metres, while two submersibles support collection and imaging.
  • Samples from dives included unusual animals and rapidly retrieved seawater and sediment, with researchers finding a bone-white lobster, horned sea cucumber, deep-sea hermit crab in a sea star, and a forearm-length sea lily.
  • With a new treaty entering into force this month, the expedition comes amid persistent ocean threats, and OceanX says its submersibles meet DNV inspections and carry emergency life support.
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'So little we know': in submersibles revealing the deep sea

A dome-fronted submersible sinks beneath the waves off Indonesia, heading down nearly 1,000 metres in search of new species, plastic-eating microbes and compounds that could one day make medicines.

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rtl.lu broke the news in Luxembourg City, Luxembourg on Monday, January 26, 2026.
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