Night dive, eerie ears: in 1991 NOAA hydrophones caught 'Upsweep,' rising tones loud enough to cross the Pacific. Its source, near volcanic seamounts, is still unresolved. 🎧 What would you think if you heard it on a dive? #Scuba #OceanMysteries #ASC

Anyone else heading to DEMA Show? 👋 Brendon and Babe will be in New Orleans Nov 3–6. Ask them how an ambient habitat you swim into works, and where one-atmosphere is headed. Comment or DM to say hey, and follow along! #DEMAShow2026 #DiveCommunity #ScubaDiving

Meet the vampire squid. It drinks no blood. It's neither a vampire nor a squid, and it lives where there's almost no oxygen, catching 'marine snow' (dead plankton, poop and mucus) on sticky filaments. 🧛 Follow ASC for more deep-sea weirdness. #VampireSquid #DeepSea #Halloween

Weekly Patreon poll is live! patreon.com/atlantisseacolon… #AtlantisSeaColony #ColonizeTheOcean #UnderwaterHabitat #OceanExploration #MarineEngineering #UnderseaLiving #Aquanaut #FutureTech #OceanConservation #SubaquaticArchitecture

An underwater city probably won't look like science fiction. It may start with a few connected habitats, research stations, farms, energy systems, and maintenance facilities. Cities grow one module at a time. #UnderwaterCity #FutureLiving #OceanTech

Colonize The Ocean - Shorts : What Is Happening To...Underwater Habitats 60+ years of "we'll live underwater someday"… so why haven't we? Funding, red tape, corrosion and a $135M price tag. #ColonizeTheOcean #UnderwaterHabitat #OceanExploration #Aquarius #Proteus #Aquanaut #OceanTech #ASC

That glow in the dark? It's bait. A female deep-sea anglerfish dangles a lure lit by bioluminescent bacteria, then swallows whatever swims close. Happy Halloween week from ASC. What's the creepiest sea creature you know? 👇 #DeepSea #Anglerfish #Halloween #ASC

Giant stride, done right: BCD inflated, one hand on mask and reg, check the water below is clear, then eyes on the horizon and take one big step out. Surface, give the OK and swim clear of the entry. What's your entry style? #ASC #SCUBA #DiveTips

Wake up to a sea turtle outside your window. One-atmosphere habitats are our long-term goal, so anyone can visit with no decompression. Would you book a night under the sea? Tell us in the comments. #ASC #UnderwaterHotel #DiveTravel

Why does your red fish look brown at depth? Water absorbs red light first, then orange and yellow, while blue travels farthest. A dive light brings the color back. Save this for your next reef dive. #ASC #SCUBA #UnderwaterPhotography

Ears fail the vibe check first. Equalizing isn’t optional — and neither is pressure design. ASC builds for the deep. #ASC #SCUBA #OceanTech #Equalize #UnderwaterHabitats

No more peeling off a wet wetsuit in a parking lot. On a habitat stay, gear hangs to dry by a porthole, the towels are warm and your next dive is right downstairs. What's your worst post-dive change story? #ASC #ScubaLife #UnderwaterHabitat

Every dive ends with a swim back up. We're building toward a stay where the ocean is your front yard. First up: an ambient-pressure habitat with a moon pool for divers. Where would you dive first? Tell us below. #ASC #ScubaDiving #OceanExploration

Put a habitat on the seafloor and the neighbors move in. Hard structure gives sponges, corals and fish something to grow on and hide around. We want ours to be good for the reef it sits on. Which resident would you watch for? #ASC #MarineScience #UnderwaterLiving

What is DEMA Show? The dive industry's trade-only event, now in its 50th year. Nov 3–6 in New Orleans. ASC is attending to learn, listen and meet the people building the future of diving. Going too? Tell us below, and follow along for DEMA week 🤿 #DEMAShow #DEMAShow2026

Myth: an underwater habitat means decompression for everyone. Our path: starting with an ambient-pressure habitat, building toward one-atmosphere habitats where anyone can come and go with no decompression. Save this and follow the build. #ASC #UnderwaterHabitat #OceanTech

Our first habitat is ambient-pressure with a moon pool: step from your room straight into the reef. The long-term vision is one-atmosphere habitats where anyone can stay with no decompression. Follow along. #ASC #UnderwaterHabitat #ScubaLife

The ocean is the next frontier, like space, and compute is already moving in. This year a data center went live underwater off Shanghai, powered by offshore wind and cooled by the sea. That's the serious money path below the surface. Your take? #ASC #DataCenters #OceanTech