**Light-controlled muscle-driven robots.** [Remote control of muscle-driven miniature robots with battery-free wireless optoelectronics](https://www.science.org/doi/10.1126/scirobotics.add1053) Scientists are using a combination of living cells and 3D scaffolds to create tiny robots. These bioengineering robots have electronics on board and can be controlled remotely, making them useful for a wide range of fields including engineering, biology, and medicine. In this study, researchers have developed small robots that are powered by light and can communicate in real-time without a battery. They were designed to walk and perform various movements, such as turning and carrying objects, when instructed through light signals. This research opens the door to creating more advanced biohybrid machines that can both sense and move while also being able to process information. @mr27.near?