jsc2021e020421 (2/15/2021) --- The Ultrasonic Tweezers are used to trap complex objects as these linked spheres (5mm each) made of plastics. The objective of the Ultrasonic Tweezers project is to develop acoustic tweezers that use sound to allow for remote and contactless manipulation of materials in a microgravity context. Image courtesy of CNES/S. Rouquette.