New Zealand startup Zenno Astronautics has successfully tested its 'Supertorquer' superconducting magnet system in orbit, demonstrating a fuel-free method to control satellites using Earth's magnetic field.

The technology, which uses solar power to generate magnetic fields that interact with Earth's field, could enable future satellite maneuvers, docking, and deep-space missions without traditional fuel.The device, housed in a shoebox-sized unit, employs superconducting magnets cooled to extreme temperatures to create precise magnetic forces.

While the system requires energy from solar panels and a heat pump to manage thermal loads, it offers a potential solution for long-term satellite operations.

Critics question the feasibility of using this technology for interplanetary travel due to the weakening magnetic field at greater distances, but proponents highlight its value for Earth orbit station-keeping.The innovation represents a significant step toward more sustainable and efficient space exploration technologies.