# Deep-Ocean Exploration Technology

Explain how crewed submersibles (Alvin, Deepsea Challenger) and remotely operated vehicles (ROVs) allow exploration of the deep; describe acoustic seafloor mapping using sonar and why only ~25% of the ocean floor has been mapped at high resolution; explore why the deep ocean is harder to explore than the surface of the Moon (pressure, cold, darkness, communication difficulties); survey astrobiology missions targeting ocean worlds in our solar system

Builds on: Exploring the Ocean (hard, https://ai.page/c/exploring-the-ocean/en.md), Predator Loss and Ecosystem Effects (hard, https://ai.page/c/predator-loss-and-ecosystem-effects/en.md)

Concept id: deep-ocean-exploration-technology. Subject: science. Licence: CC BY-SA 4.0.

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