In lieu of federal action, the Arizona Department of Health Services issued a special order allowing pharmacists to administer the latest influenza vaccinations.

A tiny cactus that survives intense wildfire could offer clues about the resilience of ecosystems on the Colorado Plateau.

A week after the deadly Grand Canyon flooding, crews continue the search for a missing hiker as the park begins the long process of recovery.

President Donald Trump has signed an executive order directing his administration to begin the process to remove the Mexican gray wolf from the federal endangered species list.

Two Flagstaff residents had front-row seats — from the river and the trail — to deadly flash flooding that surged through Grand Canyon National Park.

The U.S. Forest Service is closing 23 research stations in more than a dozen states as part of an overhaul under President Donald Trump. The Flagstaff Forestry Sciences Laboratory is not impacted.

They own car dealerships, law firms, dental practices, and restaurant chains. Collectively, these overlooked business owners hold far more wealth than the Forbes 400 — and wield considerable political power.

China's Ministry of Foreign Affairs on Monday hit back at a call from the head of Anthropic for the U.S. to curb China's artificial intelligence capabilities.

In his latest book, the world-renowned physicist draws on science and philosophy to explore the notion that the university and reality are fully knowable.

Earlier this year, OpenAI launched a feature on ChatGPT meant to help people at risk of suicide connect with someone they trust for support. But its setup may prove challenging to someone in crisis.

Industry leaders call for AI development to slow down to ensure safety, Trump to campaign for GOP candidates ahead of midterms, Iranian officials say a meeting with the Gulf States has been postponed.