Contents

31 August 2018
Vol 361, Issue 6405

About The Cover

Cover image expansion

COVER A Möbius strip symbolizes the infinite cycle of technology and science. Researchers have embraced revolutionary biotechnologies—such as super-resolution microscopy and CRISPR-based genetic engineering—to advance scientific frontiers, and the knowledge gained can often be used to develop even more powerful technologies. See page 864.
Illustration: Davide Bonazzi/@salzmanart