With next-generation telescopes, tiny space probes, and more, scientists aim to search for life beyond our solar system—and make contact. Propelled to a fifth the speed of light by a laser beam more ...
Ultrafast transition between exciton phases in van der Waals heterostructures. See Merkl et al. and Cundiff News & Views. IMAGE: Image by Brad Baxley, Part to Whole. COVER DESIGN: David Shand.