From the Editor
Search and Discovery
Roger Penrose proved that black holes could and should form in the universe. The topological picture he used in that proof has become foundational to general relativity.
Nobel Prize in Physics honors the discovery of a supermassive compact object at the heart of the Milky Way
By tracking the orbits of stars close to the galactic center, Reinhard Genzel and Andrea Ghez ruled out all possibilities besides a black hole.
Although less than a decade old, the technology is already shaking up research in cell biology and molecular biophysics.
Issues and Events
The ill-understood effect is gaining momentum and opening new avenues of research. CERN’s Compact Linear Collider and other particle accelerators are contributing.
Simulating the acoustics of destroyed or altered amphitheaters, cathedrals, and other architectural sites re-creates their sonic grandeur.
Recent changes in ice cover and ocean stratification have been so large that acoustic measurements made during the Cold War no longer reflect current conditions.
A general approach to analyzing audio files makes it possible to re-create the sound of ancient instruments, identify cross-cultural musical properties, and more.