Engineers teach spacecraft to 'dream' their way to the ISS

Researchers are developing a method that lets spacecraft autonomously dock with the ISS by 'dreaming' — probabilistically simulating trajectories. The challenge is orbital mechanics: craft travel at 28,000 km/h, and a mistake risks collision and crew death.

• Docking approach speed with the ISS reaches 28,000 km/h
• The 'dreaming' method simulates trajectories for autonomous docking
• A docking error threatens the crew and satellites in orbit