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Ocean and undersea exploration

Marine life, shipwrecks, diving, submarines, and undersea exploration.

9,175 stories · 74 in 30 days · Updated Sep 28, 2026

The pace of conversation

Posts per month

2020-01: 106 posts2020-02: 99 posts2020-03: 67 posts2020-04: 98 posts2020-05: 91 posts2020-06: 92 posts2020-07: 128 posts2020-08: 113 posts2020-09: 104 posts2020-10: 106 posts2020-11: 100 posts2020-12: 131 posts2021-01: 87 posts2021-02: 95 posts2021-03: 234 posts2021-04: 137 posts2021-05: 115 posts2021-06: 117 posts2021-07: 136 posts2021-08: 117 posts2021-09: 107 posts2021-10: 129 posts2021-11: 120 posts2021-12: 88 posts2022-01: 149 posts2022-02: 115 posts2022-03: 95 posts2022-04: 73 posts2022-05: 95 posts2022-06: 113 posts2022-07: 113 posts2022-08: 133 posts2022-09: 127 posts2022-10: 133 posts2022-11: 94 posts2022-12: 106 posts2023-01: 107 posts2023-02: 112 posts2023-03: 110 posts2023-04: 116 posts2023-05: 136 posts2023-06: 272 posts2023-07: 143 posts2023-08: 129 posts2023-09: 144 posts2023-10: 103 posts2023-11: 109 posts2023-12: 105 posts2024-01: 131 posts2024-02: 97 posts2024-03: 142 posts2024-04: 139 posts2024-05: 143 posts2024-06: 119 posts2024-07: 138 posts2024-08: 140 posts2024-09: 125 posts2024-10: 103 posts2024-11: 117 posts2024-12: 96 posts2025-01: 120 posts2025-02: 110 posts2025-03: 112 posts2025-04: 99 posts2025-05: 98 posts2025-06: 95 posts2025-07: 126 posts2025-08: 100 posts2025-09: 96 posts2025-10: 92 posts2025-11: 95 posts2025-12: 87 posts2026-01: 76 posts2026-02: 74 posts2026-03: 106 posts2026-04: 95 posts2026-05: 89 posts2026-06: 106 posts2026-07: 93 posts2026-08: 98 posts2026-09: 69 posts
2020-012026-09

Posts per month · first and latest months may be partial.

01 / EXPLORE THROUGH TIME

Timeline

Start with the latest. Scroll back through time, or zoom in for more.

Year by yearUp to 5 stories per year
2026806 stories
20251,230 stories
20241,490 stories
20231,586 stories
20221,346 stories
20211,482 stories
20201,235 stories

02 / CATCH UP

The conversation now

Popular stories, with attention fading over roughly two weeks.

Weeping whales: Stillborn humpback whale grieving documented↗ phys.org · HN · 192 comments · 243 points · Sep 17, 2026
The Return of Sail Power: Cargo Ships Are Turning Back to the Wind↗ gcaptain.com · HN · 136 comments · 193 points · Sep 17, 2026
Larger Pacific striped octopus↗ en.wikipedia.org · HN · 74 comments · 136 points · Sep 09, 2026
Bomb fishing is wreaking havoc on Indonesia's coral reefs↗ e360.yale.edu · HN · 202 comments · 364 points · Aug 25, 2026
The Shadows Lurking in the Equations – Underwater Islands↗ gods.art · HN · 13 comments · 70 points · Sep 16, 2026

03 / GO DEEPER

Follow your curiosity

Find a particular story, revisit a year, or see what resonated.

Highest rated · the last 30 days

Weeping whales: Stillborn humpback whale grieving documented↗ phys.org · HN · 192 comments · 243 points · Sep 17, 2026
The Return of Sail Power: Cargo Ships Are Turning Back to the Wind↗ gcaptain.com · HN · 136 comments · 193 points · Sep 17, 2026
Larger Pacific striped octopus↗ en.wikipedia.org · HN · 74 comments · 136 points · Sep 09, 2026
The Shadows Lurking in the Equations – Underwater Islands↗ gods.art · HN · 13 comments · 70 points · Sep 16, 2026
Lake Ontario ("Lake America")↗ community.openstreetmap.org · HN · 119 comments · 69 points · Sep 01, 2026
Scientists Find Worms in Almost Every Fish in a Tuna Haul – 96% Were Infected↗ sciencealert.com · HN · 32 comments · 43 points · Sep 04, 2026
Ask HN: UK Rescue Rocket Sheds/Houses Information↗ news.ycombinator.com · HN · 6 comments · 24 points · Sep 06, 2026
B5-BJ2 – Ice Cream Barges – Concrete Ship Constructors (2023)↗ thecretefleet.com · HN · 8 comments · 22 points · Sep 21, 2026
How an American naval officer cut weeks off the ocean voyages in the 1840's↗ twitter.com · HN · 1 comments · 15 points · Sep 22, 2026
How the Hell Did an Island Suddenly Appear, Then Vanish?↗ 404media.co · HN · 6 comments · 15 points · Sep 03, 2026

10 stories shown.

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