Andrew Rossi

The $118 million project to replace the Yellowstone River Bridge requires "an orchestra of coordination." But the new 180-foot-tall, 1,285-foot-long…

Scientists will be drilling a 1.3-mile-deep borehole into an active volcano to tap into the potentially limitless energy from the magma underneath…

Mourners gathered in Jackson's Public Square on Saturday night to attend a candlelight vigil for Grizzly 399. “I’ve cried every night since she died,”…

Abyss Pool in the West Thumb Geyser Basin in Yellowstone National Park is getting hotter and changing colors. Scientists say the pool, where a human foot…

NASA scientists concocted an idea a decade ago to save the world from a civilization-ending eruption of the supervolcano underneath Yellowstone National…

A winter weather system enveloping Wyoming won't cover the Cowboy State with a lot of snow. But overnight temperatures could plunge into the single digits…

Four meteor showers are all active or reaching their peaks during the month of November. That means Wyoming's night skies will be “bombarded” with meteors and fireballs for the entire month.

Wyoming photographer Ken Driese has come across a lot of abandoned places in his treks across the Red Desert. But one place left him spooked. There was the upside-down car riddled with bullets, the stolen teddy bear facedown in dirt and a Bible open to the “Word of God.” He stayed just long enough to get photos.

Natural Trap Cave near Lovell is one of the best Ice Age fossil sites in the world, but its lack of saber-toothed cats and giant ground sloths tells paleontologists that those Californians never relocated to Wyoming.

The trashman in Rock Springs, Wyoming, won't pick up old, worn-out and funkified mattresses anymore, and the local landfill won't take them.