Particle PhysicsNovember 1, 2019
The Exquisite Precision of Time Crystals
Exotic new states of matter contain patterns that repeat like clockwork
Volume 321, Issue 5
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Features
ConservationNovember 1, 2019
Conservation after Conflict in Colombia
Seeking a sustainable economy, the country wants to capitalize on its astonishing biodiversity
BehaviorNovember 1, 2019
Social Media Has Not Destroyed a Generation
New findings suggest angst over the technology is misplaced
MedicineNovember 1, 2019
Phage Therapy Could Beat Drug-Resistant Illnesses
Treatment first used in the early 20th century is showing promise against deadly infections
EvolutionNovember 1, 2019
Solving the Mystery of Songbird Diversity
A strange chromosome may have provided fodder for the evolution of new traits
The SciencesNovember 1, 2019
Inside the World’s First Underground Gravitational-Wave Detector
Japan’s KAGRA observatory set to begin operations by the end of 2019
The SciencesNovember 1, 2019
Is Inequality Inevitable?
Wealth naturally trickles up in free-market economies, model suggests
Departments
Advances
Molecules in Blood Spike Hours before Seizures
New Elevation Measure Shows Climate Change Could Quickly Swamp the Mekong Delta
"Cognitive Prosthesis" Enhances Productivity
Warming Will Cost Rich and Poor Countries Alike
In Case You Missed It
Brazilian Ants Build Unusual Trap for Bugs
Baby Jumping Spiders See Surprisingly Well
How the Sahara Was Born
Space Archaeologist Probes History in Orbit
From the Editor
Lucy in the Sky with Crystals
Letters
Readers Respond to the July 2019 Issue
The Science Agenda
The U.S. Should Tighten Vaccination Mandates
Forum
The U.S. Needs a Mental Health Czar
The Science of Health
Are Pricey New Drugs Better Than Old Ones?
Ventures
Goodbye, Phone Calls. Hello, Loneliness
Reviews
Recommended Books, November 2019
The Intersection
Mass Shootings' Social Contagion
Anti Gravity
The Stressful Discovery of Type A Personality
50, 100 & 150 Years Ago
50, 100 & 150 Years Ago: November 2019
Graphic Science