14 September 2018
Vol 361, Issue 6407

About The Cover

Cover image expansion

COVER An agile, tailless untethered robot with four flapping wings performs a fruitfly-inspired turning maneuver. The image combines the robot in flight with a time exposure of its flight path. This robot offers a fresh perspective on insect flight, revealing a passive aerodynamic mechanism that helps fruitflies perform rapid banked turns to avoid dangers. See pages 1073 and 1089. For more on the process behind the cover image, see
Image: Skopei Films/©TU Delft