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Watching Evolution Happen in Two Lifetimes
The biologists Rosemary and Peter Grant have spent four decades on a tiny island in the Galápagos. Their discoveries reveal how new animal species can emerge in just a few generations.
Hacker-Proof Code Confirmed
Computer scientists can prove certain programs to be error-free with the same certainty that mathematicians prove theorems.
The Strange Second Life of String Theory
String theory has so far failed to live up to its promise as a way to unite gravity and quantum mechanics. At the same time, it has blossomed into one of the most useful sets of tools in science.
From Gaia, a Twinkling Treasure Trove
The first star map from the ESA’s Gaia space telescope is poised to revolutionize our understanding of the Milky Way galaxy.
Seeing Time Through a Liquid Crystal Display
What insights can an LCD display give us about time's arrow?
Responding Rapidly to Big Discoveries
How do scientists react to major breaking science news? For astrophysicists after the big gravitational waves announcement, it was meeting for two weeks in Santa Barbara, California.
Genetic Engineering to Clash With Evolution
Gene drives promise to spread a trait across an entire population. But evolutionary forces are going to alter even the best-engineered plans.
Solution: ‘A Drunkard’s Walk in Manhattan’
City blocks help illustrate why walking randomly tends to take you away from your starting point.
Colliding Black Holes Tell New Story of Stars
Just months after their discovery, gravitational waves coming from the mergers of black holes are shaking up astrophysics.