Michel Barsoum, Tamer El-Raghy
Ternary ceramics turn out to be surprisingly soft and machinable, yet also heat-tolerant, strong and lightweight
John Daugman
The colored part of the eye contains delicate patterns that vary randomly from person to person, offering a powerful means of identification
Thomas Greene
"Stellar embryology" takes a step forward with the first detailed look at the youngest Sun-like stars
Robert Plutchik
Human emotions have deep evolutionary roots, a fact that may explain their complexity and provide tools for clinical practice
Laura Watchman, Martha Groom, John Perrine
A review of 43 habitat conservation plans reveals numerous ways to reduce uncertainty for landowners and imperiled species alike