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Cetacean Exosuit Delivery

An unmanned Cetacean vessel delivered a shipment of prototype equipment to the UMS Carl Sagan while docked at Phobos Station. The delivery was addressed to Ambassador-Captain Splishy-Splashy — a title no one aboard had heard before.

The shipment contained six items: one Wavewalker mobility platform fitted for Splishy, and five Cetacean Environmental Suits fitted for Azure, Kai, Victoria, Rin, and Chen.

The Delivery Vessel

An unmanned craft on a direct intercept trajectory, decelerating at sustained 5g. It was small — barely larger than a Delta-class drone — and it arrived fast. The drive signature read as fusion, but the output-to-mass ratio didn't match anything in the Fleet registry. No transponder code. No IFF. Just a tight-beam communication header identifying it as a Cetacean diplomatic package, priority delivery.

Up close, the vessel was a blunt, utilitarian dart. Most of its mass was drive and fuel. The cargo section was a compact, shock-hardened cylinder at the nose, maybe four meters long. The hull was smooth, featureless, and bore no markings except a single cetacean glyph etched near the cargo hatch. The whole thing looked like it was built to do exactly one job and then stop mattering. There was no return fuel. Wherever it came from, it wasn't going back under its own power.

This craft crossed from Earth to Mars in roughly a day. The fastest documented courier run in recent memory was a 2.5g sustained-thrust Fleet military vessel — considered exceptional. This unnamed pod doubled that, unmanned, without fuss.

The Cetaceans do not have a known spacecraft manufacturing capability. They don't build ships. They don't have shipyards. They commission space in Fleet vessels and human-built stations.

So where did this come from?

The Wavewalker — Cetacean Mobility Platform

The largest crate in the shipment — over two meters long. The manifest label read: Wavewalker Mobility Platform, Prototype, Serial 001. Fitted for: Ambassador-Captain Splishy-Splashy.

When it opened, the interior was custom-molded shock foam around something that didn't look like any piece of equipment anyone aboard had seen before. It read as a cross between a deep-sea submersible and something anatomical — organic curves, articulated segments, a shape that clearly wasn't built around a human body.

What It Is

A fully self-contained powered exosuit designed for a bottlenose dolphin. It enables Splishy to operate upright in humanoid-scale environments — walk through station corridors, use airlocks, traverse surface terrain, work in vacuum. It is, as far as anyone knows, the only one of its kind.

The Frame

The suit stands roughly 2.2 meters tall when upright — broad across the upper body, tapering toward digitigrade legs that end in wide, stable footpads. The silhouette is unmistakably inhuman: too broad in the torso, too narrow in the head, with proportions that read as wrong for a biped until you realize it wasn't designed for one. The upper limbs terminate in four-fingered manipulator hands — not dolphin flippers, not human hands, but something engineered for grip and fine motor function. They move with a slight mechanical precision that betrays their artificial nature.

The Interior

MCP-style hydration rather than a water-filled cavity. The inner surface is a web of moisture-management layers — a constant-humidity membrane that keeps Splishy's skin wet without the mass penalty of carrying hundreds of kilos of water. The suit is body-mapped to dolphin anatomy: the torso cradle supports his body weight distributed across the chest and belly rather than loading through a spine that was never meant to be vertical. It looks deeply uncomfortable by human standards, but the engineering is clearly deliberate — every contact surface is pressure-tuned, every joint accounts for a body plan that doesn't have shoulders or knees in the usual sense.

Control

The suit reads motor intent through a dense sensor mesh against Splishy's skin — the same principle that lets dolphin pilots fly ships, but at much higher resolution and across the whole body. Splishy thinks about moving forward, and the sensor array reads the pattern of muscle micro-activation across his flanks and tail, translates it into bipedal gait. It's not telepathic and it's not a brain plug — it's a personal-scale neural imaging system, the kind of technology you'd get if you took a medical-grade brain and body scanner and miniaturized it two hundred years forward.

Learning to use it is like learning to walk. The basics are intuitive — the suit meets you halfway — but fluid, natural movement takes practice. Splishy will be clumsy at first. Deliberate. Thinking about each step. The suit's narrow AI handles balance and fall prevention, but the movement itself has to come from him.

What It Looks Like in Motion

When Splishy walks, it doesn't look like a person walking. The gait is different — slightly wider, slightly more deliberate, with a rolling quality that comes from the suit translating a swimmer's instincts into terrestrial movement. The footpads spread on contact and grip. The manipulator hands move with careful precision. The head — Splishy's actual head, visible through a transparent dome similar to a standard EVA helmet but shaped for a rostrum rather than a human face — swivels and tracks with an alertness that reads as very alive inside something very mechanical.

He's going to draw eyes. There is no being subtle in this thing. It is large, it is visibly alien in design, and it has a dolphin's face looking out of it.

Environmental Capability

Sealed against vacuum with its own air supply (Splishy breathes air — he's a mammal). Thermal regulation rated for extreme environments from the upper Venusian atmosphere to Pluto's surface. Dust management. Radiation dosimetry. Tool hardpoints on the upper body — the same standardized system as human MCP suits, so any compatible module clips on.

Cetacean Environmental Suits

Five additional cases, human-scaled, individually labeled for Azure, Kai, Victoria, Rin, and Chen. Each case was body-mapped — whoever built these had precise biometric data for every member of the team.

Overview

Full-body powered exosuits that sit in the gap between the standard MCP-plus-exoframe kit and something purpose-built for extended operations in unknown, hostile environments. They're not combat armor — nobody is going to mistake these for Fleet Marine assault rigs. But they are significantly more protective, more capable, and more enclosed than anything the crew currently owns.

Construction

The base is still MCP — mechanical counterpressure against the skin, custom-fitted. But over that, instead of the modular vest-and-hardpoint setup of standard EVA over-systems, there's an integrated powered shell. Articulated plates over the torso, upper arms, and thighs. A sealed collar-and-helmet assembly that goes on as one unit rather than separate helmet and neck seal. Powered joints at the shoulders, elbows, hips, and knees — similar in principle to the standard exoframe, but lighter, more responsive, and built into the suit rather than clipped on over it. These don't feel like wading through water. They feel like being slightly stronger and slightly more tireless than you actually are.

What's Different from Standard Kit

  • Thermal range. Standard EVA thermal management handles Mars (-60C to -120C). These are rated for extreme environments from the upper Venusian atmosphere to Pluto's surface — the full range of conditions humans might encounter anywhere in the solar system.

  • Radiation hardening. Passive dosimetry is replaced with active shielding — a low-power electromagnetic field generated by the suit's power supply. Not enough to live inside indefinitely, but enough to extend safe operational time in high-radiation environments significantly beyond what genetic mods and managed exposure can handle.

  • Puncture and impact resistance. The articulated plates aren't decorative. They're a hard composite over the MCP base layer. A standard MCP suit treats a puncture as a bruise. These suits treat a puncture as something that probably doesn't reach the MCP layer. The plates won't stop a railgun round, but they meaningfully change the survivability calculus for debris, shrapnel, and low-velocity impacts.

  • Sealed atmosphere. Standard MCP suits have an open base layer with a sealed helmet. These seal entirely — the suit can operate as a fully closed environment for significantly longer than standard EVA endurance. The air supply is larger and the CO2 scrubbing is more aggressive.

  • Power. Self-contained high-density battery, good for substantially longer continuous operation than a standard exoframe's battery pack. Compatible with tethered power for indefinite use.

  • Integrated systems. Comms, HUD, personal agent interface, and a sensor suite that's more comprehensive than standard EVA — thermal imaging, atmospheric analysis, structural scanning. The kind of toolkit you'd want if you were entering environments where you don't know what you're walking into.

What They Look Like

More enclosed than standard EVA, less bulky than you'd expect. The silhouette is human — recognizably a person, not a mech — but more armored, more sealed, more serious than the "people wearing specialized gear" look of standard MCP. The plates have a faintly organic curve to them, the same design language as Splishy's Wavewalker. These were clearly made by the same people. The color is a deep, slightly iridescent grey-blue that doesn't match any Fleet or civilian standard.

What They Feel Like

Putting one on is faster than a standard MCP suit — the integrated design means fewer separate components. The powered joints activate smoothly. The helmet seals with a soft click and the HUD comes alive. It feels like wearing good gear — the kind of thing where you put it on and immediately understand that whoever made this knew exactly what they were doing. Kai's kinetic sense works through it cleanly. Victoria's microkinesis for medical work is unimpeded. Rin's instinct to check every seal and attachment will be satisfied — the engineering is meticulous.