Scientific American editor Mark Fischetti explains how the leaves of deciduous trees perform their annual chameleon act, changing from various shades of green to hues of bronze, orange and brilliant red.
One in 10 Who Menstruate Suffer from Endometriosis. Why Do We Know So Little about It?
A Black Mother's Loss Explains Why U.S. Maternal Health Care Is Broken
Detroit Has a Large Population of Ring-Necked Pheasants, and They Are Striking
What Is the Black Hole Information Paradox? A Primer
Jason Drakeford, Clara Moskowitz, Jeffery DelViscio and Sunya Bhutta