NASA Partners With Inversion Space to Study Aerocapture via Arc Vehicle

NASA has awarded a contract to Inversion Space to study the application of aerocapture using the company's Arc lifting-body reentry vehicle. The research focuses on utilizing Earth's atmosphere to simulate the complex maneuvers required to enter orbit around other planetary bodies.

Under the terms of the contract, Inversion Space will explore how the Arc vehicle can demonstrate aerocapture, a process that uses a planet's atmosphere to decelerate a spacecraft into orbit. This method serves as an alternative to traditional thruster-based braking, which requires heavy fuel loads to slow a craft down sufficiently for orbit insertion. By leveraging aerodynamic drag, the study aims to prove that spacecraft can achieve orbit in a single atmospheric pass.

The Logistics of Deep Space

Traditional interplanetary missions are heavily constrained by the "rocket equation," where the fuel required for braking at a destination often limits the amount of scientific payload a spacecraft can carry. To reach a planet and stay there, missions typically rely on massive propulsion systems to fire in a slow-down configuration over extended periods. Aerocapture is a theoretical solution to this bottleneck, potentially revolutionizing deep space logistics by replacing chemical propulsion with atmospheric friction.

Impact on Interplanetary Travel

Successful aerocapture technology would fundamentally change the economics of space exploration. By eliminating the need for massive amounts of braking fuel, spacecraft could travel faster to other planets and carry significantly larger payloads. This shift allows for faster transit because missions would no longer need to spend months firing propulsion systems to slow down.

Beyond deep space, the maneuverability developed during this study has immediate implications for Earth-orbiting assets. The ability to precisely control a vehicle's trajectory within the upper atmosphere could be applied to satellites for advanced aerodynamic orbit changing, providing a more efficient way to adjust positions without relying solely on limited onboard propellant.

Next Steps for the Arc Vehicle

NASA and Inversion Space will now focus on the technical feasibility of using the Arc vehicle's lifting-body design to execute these precise trajectories. The vehicle's maneuverability is key, as it allows the team to fly trajectories at Earth that represent the aerocapture of different planetary bodies. The study will determine if this approach can be scaled for future missions to Mars or other destinations in the solar system.