From the Editor
Search and Discovery
Three architects of LIGO are honored for their successful effort to directly detect gravitational waves.
Proteins frozen in vitreous ice are now being imaged with atomic resolution.
Issues and Events
The cement-based layer can be applied to nonstructural masonry walls to make them bend rather than break.
A density pattern created by acoustic waves in the early universe can be seen in the distribution of galaxies and used as a standard ruler with which to measure cosmological expansion.