From the Editor
Search and Discovery
To make solid-state refrigeration technology more efficient, researchers exploit the large, reversible temperature swing of a material comprising nickel, manganese, and titanium.
Colonies of a single-celled organism synchronize their contractions to release toxins that may deter predators.
Issues and Events
Stakeholders in space exploration consider implications of a transition from science fiction to science fact.
Alternative formats for sharing information and facilitating discussion help scientists lower their carbon footprints.
Although mass gatherings of people are normally safe, sometimes their physical interactions prevail over social norms and peaceful events can become disasters.