Scientists are studying mineral deposits in the caves of the Grand Canyon to understand the impacts of climate change.

They chose an ancient calcium projection, called stalagmite, from the floor of an undisturbed Grand Canyon cave and studied its geochemistry. The research team was led by the University of Nevada, Las Vegas, and included the University of New Mexico.

Nevada Democrats are seeking sanctions against Republican U.S. Senate hopeful Sam Brown for failing to disclose on financial disclosure forms his previous role as executive board chairman for a nonprofit whose national chapter has advocated for some of the most stringent anti-abortion laws across the country.

A little vacation splurge, multiplied by millions of tourists annually, keeps Las Vegas’ dazzling strip lights shining.

The Grand Canyon, known for its majestic valleys and millennia-old rock layers, has now unveiled another marvel — its extensive cave systems that could potentially unlock secrets about climate change.

The CDC found a parasite called Angiostrongylus cantonensis (A. cantonensis) in brown rats from Atlanta. Humans can get infected by consuming snails or other foods that have picked up rat droppings.

The Miami company is developing treatments for aging-related chronic diseases.

At $1.4 billion, the Powerball jackpot on the line Saturday night is the world’s fifth-largest lottery prize, due to higher interest rates, long odds, fewer ticket sales per drawing and, of course, luck.