Issues
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Search and Discovery
Two-faced ions form a promising battery material
Electrolyte molecules that have both positive and negative charges stay in place while lithium ions move among them.
Stacked materials build up massive electrons
A heterostructure exhibits unusual electronic behavior previously seen only in materials with rare-earth or actinide elements.
Spectroscopy shines light on an electrode–water interface
With increasingly negative electric potentials, sodium spectator ions help split water to form molecular hydrogen.
Issues and Events
Supply-chain issues compound research slowdowns
Researchers make do with alternative sources, methods, materials, and activities.
DOE medical isotope campaign nears completion
The US Department of Energy says it has provided enough support to get a domestic industry off the ground without weapons-usable material.
Articles
Astrochemistry in the terahertz gap
New capabilities are enabling laboratory spectroscopists to acquire more molecular spectra that advance our chemical understanding of the universe.
Mushy-layer convection
Complex physical processes that affect the solidification of multicomponent fluids have implications for materials science and geophysics.
Water makes its mark on GPS signals
In addition to being a navigation tool, GPS signals are helping scientists observe Earth’s hydrologic cycle.
Books
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Obituaries
Richard R. Ernst
Arthur Poskanzer
Quick Study
Extreme sensitivity charge detection
To detect individual electrons in air, researchers are revisiting experiments from the dawn of the laser age with new technology.