Math Puzzle: How Many Routes Can You Find?
Try to solve a traveling salesman’s directional dilemma
Math Puzzle: How Many Routes Can You Find?
Try to solve a traveling salesman’s directional dilemma
Oldest Deep-Sea Shipwreck Is a 'Time Capsule' from the Bronze Age
An ancient shipwreck lost in deep waters has yielded its first clues: amphorae from a lost age of international trade and civilization
What Are Astronomical Summer and Meteorological Summer, and How Do They Differ?
How does astronomical summer differ from meteorological summer? And how is climate change affecting how long summer lasts?
Climate Action Is a Labor Issue for This Teachers’ Union’s Leaders
The president of the Chicago Teachers Union explains how climate change became a pillar of the union’s contract demands
A New Vision for Neighborhoods That Could Fight Loneliness
These cohousing communities are fighting an epidemic of loneliness with radical neighborliness.
Easy-to-Use CRISPR Tests Could Change How We Diagnose COVID and Other Illnesses
Gene-cutting diagnostic tests could be as easy as a rapid COVID test and as accurate as PCR
How George Floyd’s Death Exposed a Fake Syndrome: ‘Excited Delirium’
A completely fabricated condition, crafted from racist medical biases, still corrupts the criminal justice system today
These Are the Most Beautiful Equations, according to Mathematicians
Mathematicians picked the most dazzling, thought-provoking and compelling equations they know
Doctor Who’s Time Lords Have Two Hearts. Here’s How Their Dual Cardiac System Could Work
A Doctor Who superfan explains how the unusual cardiovascular system of the alien Time Lords could evolve and function
Heat Waves Deserve Disaster Relief from FEMA, Petition Argues
Places beset by heat waves should receive FEMA disaster funds just as those hit by hurricanes or flooding do, labor unions, green groups and public health advocates argue in a new petition
This Isn’t Your Grandparents’ Summer Heat
The face of summer is transforming, as people today face more frequent, longer-lasting and hotter heat waves than they did several decades ago
How the Recycling Symbol Duped People into Buying More Plastic
The simplicity of the recycling symbol belies its complicated role in corporate America’s quest to sell ever more plastic