NASA partners with UK firm to build space gym for lunar astronauts
A British engineering firm is developing specialized resistance machines for NASA’s Artemis program to combat muscle loss in astronauts. The gym, set for lunar deployment by 2027, will use electromagnetic resistance to simulate Earth-like workouts in microgravity.
British firm SpaceFit Engineering Ltd. has secured a £12 million contract with NASA to design and build the first gym equipment suite for astronauts on the Moon. The company, based in Bristol, will deliver prototype machines to NASA’s Johnson Space Center in Houston by Q3 2025, with lunar deployment scheduled for the Artemis 7 mission in late 2027.
The equipment must operate in lunar gravity, which is one-sixth of Earth’s, while resisting the fine, abrasive regolith dust that clings to everything. SpaceFit’s lead engineer, Dr. Amara Patel, said the machines will use electromagnetic resistance instead of traditional weights, ensuring astronauts can maintain muscle and bone density despite the harsh conditions.
💡 Pro Tip
Electromagnetic resistance machines reduce wear and tear in space environments, where mechanical systems can jam or degrade from dust and temperature swings.
NASA’s Artemis program aims to establish a sustained human presence on the Moon by the end of the decade, but prolonged exposure to microgravity weakens muscles and bones. Previous missions, like Apollo, provided only limited exercise options, such as bungee cords and resistance bands. SpaceFit’s machines will be the first to offer gym-quality resistance training in space.
| Equipment Type | Earth Function | Space Adaptation |
|---|---|---|
| Rowing Machine | Uses flywheel and weight stacks | Electromagnetic resistance mimics pulling against gravity |
| Weight Bench | Uses free weights or plates | Magnetic plates adjust resistance dynamically |
| Treadmill | Uses motorized belt and shock absorption | Magnetic harness secures astronauts to the belt |
SpaceFit has already tested a scaled-down version of the equipment in parabolic flights, where brief periods of microgravity simulate lunar conditions. Astronauts reported the electromagnetic resistance felt nearly identical to working out on Earth, a critical factor for morale and long-term health. The company is also collaborating with the European Space Agency to integrate the machines into lunar habitat designs.
Key Points
- ✅ £12 million contract awarded to Bristol-based SpaceFit Engineering Ltd.
- ⚡ First gym equipment designed for lunar gravity and regolith dust resistance
- 💡 Electromagnetic resistance replaces traditional weights to prevent wear in space
Critics question whether lunar gyms are a priority, given NASA’s tight budget and delays in Artemis missions. However, Dr. Patel argues that without robust exercise solutions, astronauts could face debilitating muscle atrophy during long-duration stays. The company’s engineers are also exploring ways to make the machines compact enough for future Mars missions, where gravity is just 38% of Earth’s.
- 📊 Astronauts lose up to 20% of muscle mass during a six-month stay on the ISS
- 🔍 Regolith dust has caused mechanical failures in past lunar missions
- ⚠️ NASA’s Artemis budget faces scrutiny over cost overruns and scheduling delays
The contract includes options for SpaceFit to supply additional units for the Lunar Gateway space station, a key part of NASA’s Artemis architecture. If successful, the technology could also be adapted for commercial space stations, like those planned by Axiom Space and Orbital Reef. For now, the focus remains on proving the equipment can withstand the Moon’s harsh environment before astronauts step on it again.
📋 By The Numbers
- 1/6 — Gravity on the Moon compared to Earth
- 2027 — Earliest lunar deployment date for the gym
- 20% — Estimated muscle loss for astronauts in prolonged microgravity