Read the February 2022 Issue of Physics Today Now
Hua Liu American Astronomical Society (AAS)
Physics Today, the flagship publication of the American Institute of Physics (AIP), is the most influential and closely followed physics magazine in the world. With authoritative features, full news coverage and analysis, and fresh perspectives on technological advances and groundbreaking research, Physics Today informs readers about science and its role in society. Members of the AAS, an AIP Member Society, automatically receive free print and online subscriptions to the magazine. Physics Today Online, the magazine’s internet home, presents an enhanced digital edition and provides a valuable online archive.
In the February 2022 Issue
Astrochemistry in the Terahertz Gap
New capabilities are enabling laboratory spectroscopists to acquire more molecular spectra that advance our chemical understanding of the universe. — Susanna Widicus Weaver
Mushy-Layer Convection
Complex physical processes that affect the solidification of multicomponent fluids have implications for materials science and geophysics. — Daniel Anderson, Peter Guba, and Andrew Wells
Water Makes Its Mark on GPS Signals
In addition to being a navigation tool, GPS signals are helping scientists observe Earth’s hydrologic cycle. — Clara Chew
Commentary: A Physicist’s Perspective on COVID-19
"I worry that it will be a long time before the culture of direct face-to-face interaction among physicists gets reestablished." — Sankar Das Sarma
Stacked Materials Build Up Massive Electrons
A heterostructure exhibits unusual electronic behavior previously seen only in materials with rare-earth or actinide elements. — Heather M. Hill
Supply-Chain Issues Compound Research Slowdowns
Researchers make do with alternative sources, methods, materials, and activities. — Toni Feder