Imagine a satellite that can change its shape while travelling through space, unfold itself without traditional mechanical systems, and even use sunlight as a source of propulsion. This futuristic concept could become possible with a new type of spacecraft called OrigamiSat , developed by researchers led by Aloisia Russo and her team. Inspired by the ancient Japanese art of paper folding, OrigamiSat is designed to fold, unfold, and transform into different shapes while operating in space. What makes this concept particularly interesting is that it combines two technologies: 4D-printed smart materials and solar radiation pressure . Together, they could allow the spacecraft to change its configuration using heat and the gentle force of sunlight. The research could open new possibilities for designing lightweight, multifunctional spacecraft that perform several tasks without requiring separate large structures. Why Do Satellites Need to Change Their Shape? Modern spacecraft often carry se...