Eterna Space Station
Artificial Gravity | Modular Design | Permanent
Through Eterna® space station with Artificial Gravity, Marinovix is laying the foundation for deep space exploration – especially the Mars Habitat Mission. In addition to this, Eterna® is also a self sustaining habitat to protect people in case of natural disasters.
Eterna® is not another Zero-G laboratory. Eterna® is equipped with Artificial Gravity, designed for people to live, work, and build in space — with real gravity under their feet. While other stations float, Eterna® spins. That spin creates artificial gravity, so astronauts can walk, sleep, eat, and recover like they do on Earth. No more muscle loss. No more months of rehabilitation after coming home.
Eterna® is built to last forever. And to grow forever.
The Design
A whole Torus, Not a chain of boxes.
Eterna® is a continuous 250-meter-radius torus with a 30-meter tube diameter. One strong pressure hull, not 60 fragile joints. Inside, it feels like one long, smooth city ring — apartments, labs, greenhouses, gyms, and parks.
But safety is modular. Inside the torus, sealed bulkheads divide the ring every 30 meters. If one section fails, it seals in seconds. The station lives. And on the outside, modular labs and habitats can clip on or detach. Eterna® grows as we need it.
Strong - Built to last lifetimes
6 Pressurized Spoke Corridors
Six spokes connect the torus to the center. They are not just structural beams. They are pressurized, walkable corridors where crew transit, cargo moves, and power, water, and air flow. As you walk inward, gravity drops — perfect for low-g manufacturing, Moon-gravity research at 0.16g, and Mars-gravity research at 0.38g, all in one station.
Central Hub: Rotary Bearing & Motor Hub
At the center sits Eterna®’s heart — a 45-meter cylindrical hub with a giant rotary bearing and motor. It controls Eterna®’s rotation, stores energy in a flywheel, and provides a stable, non-rotating dock for easy arrivals.
The hub is also the brain. It slows Eterna® from 1.9 RPM to 0.5 RPM for arrivals, then spins it back up to 1g in minutes — without wasting fuel.
Artiificial Gravity Done Right!
Eterna® spins at 1.9 RPM to create 1G at the torus ring.
- Radius: 250m from center to torus midline
- Rotation: ∼1.9 RPM for 1g
- Gravity Gradient: Less than 1% difference between head and feet. No dizziness. No Coriolis sickness.
- Stability: The spokes and rigid torus act as a giant flywheel. Eterna® spins smooth and stable for decades.
Hangar Bay 03 — No Docking. Just Flying In.
Eterna® does not use traditional docking ports. Docking ports break, jam, and wobble a spinning station.
Instead, Eterna® has Hangar Bay 03, a massive pressurized hangar integrated directly into the torus ring.
Here is how it works:
- Eterna® slows to 0.5 RPM using its flywheel motor. Gravity drops temporarily.
- Avanta®, our reusable VTOL spacecraft, matches Eterna®’s rotation and flies sideways into the open hangar door using precise hover flight.
- The door closes. The hangar pressurizes. Avanta® lands on the deck.
- Eterna® spins back up to 1G. Crew and cargo walk straight out.
No docking. No capture ring. Just direct entry.
For quick crew transfers, Avanta® can also land on the Central Hub Dock — an external platform with a direct view of Earth, no slow-down needed.
Why Eterna®?
Live in 1g. Stay healthy for years, not months.
Moon, Mars, and Earth gravity in one station.
A testbed for building real settlements on the Moon, Mars, and beyond.
Modular, repairable, expandable. Eterna never becomes obsolete — it just grows.