Peter O'Dowd

Six-time USA Memory champion Nelson Dellis has memorized hundreds of digits of pi. He has tips for how to improve your memory.

The only lithium mine operating in the United States is in Nevada. But there are plans to open more to meet the demand for lithium-battery storage.

Mt. Graham is known as a sky island, a mountain ecosystem surrounded by a “sea of desert.”

Scientists believe there are only a few hundred black-footed ferrets still living in the Western United States.

The number of visitors to Las Vegas in 2025 dropped by nearly 8% compared to the year before, according to the Las Vegas Convention and Visitors Authority. Officials say a drop in international tourists and concerns about the economy are to blame.

Snowfall in Colorado's Rocky Mountains is far below average this winter.

Birds of prey are often fatally injured by power lines.

A new obesity drug that Eli Lilly is researching but hasn't approved is turning up online, even though it's not supposed to be available.

Those first stamps made it easier than ever to communicate, but early on people weren't quite sure how to use them.

An injured red-tailed hawk recently appeared near host Peter O'Dowd's neighbor's front yard. The rescue organization that's treating the bird suspects it was electrocuted by a power line.