The beloved butterflies had fallen to critical levels in recent years. Experts weigh in on what might be causing their remarkable return. On a cold November morning in California, a photographer holds ...

(This program is no longer streaming). Sixty-six million years ago, an asteroid wiped out the dinosaurs in a fiery global catastrophe. But we know little about how their successors, the mammals, ...

In southern New Mexico lies the Tularosa Basin, an oblong bowl that’s home to a natural sandbox: White Sands National Park. In 2005, David Bustos came to White Sands to work as a National Park Service ...

In a contest for the least contentious statement a person can make, “What goes up must come down” is surely a strong contender. Of the four known fundamental forces—gravity, the electromagnetic force, ...

An electrical engineer works on Form Energy's 2022 battery module in the company's lab in Berkeley, California. Image courtesy of Form Energy Share Weirton, West Virginia has iron in its blood. The ...

Chris Mazurek was a freshman in college when he had a dream that he was inside the Legends of Zelda video game. He saw himself as the main protagonist, Link, in third person. Suddenly, beeping noises ...

At the 1998 Winter Olympics in Nagano, Japan, snowboarding made its debut as an Olympic sport. No longer relegated to the fringes, snowboarders took to the snow-capped peaks of Mount Yakebitai, and 26 ...

Dr. Percy Julian was a man of genius, devotion, and determination. The grandson of enslaved people from Alabama, Dr. Percy Julian met with every possible barrier in a deeply racist and segregated ...

A false-color image of Saturn based on near-infrared data from the Cassini spacecraft, which orbited the planet for 13 years. Image Credit: NASA/JPL-Caltech/SSI ...

Split a mile in half, you get half a mile. Split the half mile, you get a quarter, and on and on, until you’ve carved out a length far smaller than the diameter of an atom. Can this slicing continue ...

Imagine a website that reviewed narcotics. Imagine that people who were really into methamphetamine or heroin could go to one of dozens of sites to weigh the pros and cons of each drug. Imagine these ...

On August 10, a weather complex known as a “derecho” sent intense winds and thunderstorms over a 700-mile stretch from Nebraska to Indiana. Now, Iowa works to recover from its damage. BySukee Bennett ...