Issues
From the Editor
Readers’ Forum
Search and Discovery
Muon measurements embolden the search for new physics
Evidence is mounting that the value of the particle’s anomalous magnetic moment cannot be predicted by the best-available theory.
Polarized light shows hot gas swirling around a galactic core
The images of galaxy Messier 87 provide evidence of magnetic field lines in its innermost region. Those lines likely trace the event horizon of a supermassive black hole.
A European snowstorm is linked to climate change
Precipitation that fell across the continent came from part of the Arctic Ocean that’s only recently been free of ice.
Issues and Events
Should solar geoengineering be part of how humanity counters climate change?
Moving forward requires research and international and intergenerational participation.
The cost of solar energy production has plunged, but it needs to fall further
The Department of Energy has lowered its 2030 targets for the price of energy from photovoltaics and concentrated solar power. But the low-hanging fruits have been picked.
Articles
Living cells on the move
Spectacular collective phenomena, such as jamming, turbulence, wetting, and waves, emerge when living cells migrate in groups.
Drops in cells
Liquid droplets act as microreactors. Can they also serve as a control mechanism for cellular biochemistry?
Accelerating progress in climate science
Interdisciplinary teams that integrate theory, data, and computing can now produce urgently needed, action-oriented climate science.
Books
New Products
Obituaries
Paul Josef Crutzen
Rudolf Zahradník
Quick Study
The air we breathe in a car
Your typical commute hides complex fluid-dynamical pathways of disease transmission. Where you sit and the windows you open could heighten or suppress the risk of airborne infection.
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