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Arizona

A spray of water droplets falls onto a city street on a sunny day in front of a brown, multistory building. A crowd of people and dogs watch and play in the spray.
Posted inResearch Spotlights

Extreme Heat in U.S. Cities Revealed at High Resolution

Sarah Stanley, Science Writer by Sarah Stanley 10 September 202510 September 2025

Data from personal weather stations power a novel way to detect urban heat islands.

Rocky hills with trees in the foreground on a cloudy day.
Posted inResearch & Developments

Supreme Court Rejects Tribal Appeal to Halt Planned Copper Mine

by Grace van Deelen 29 May 202529 May 2025

On 27 May, the United States Supreme Court declined to hear arguments from a group of Apache leaders challenging a copper mine that would damage land that tribe members consider sacred, according to the Los Angeles Times. 

A lone saguaro cactus is outlined by a rising Sun.
Posted inResearch Spotlights

Helping the Most Vulnerable Stay Cool in Extreme Heat

Sarah Derouin, Science Writer by Sarah Derouin 5 November 20245 November 2024

Choosing the ideal location for air-conditioned cooling centers in cities facing dangerously high temperatures takes good population data and community engagement.

A photo depicts a landscape with three large hills in the background and rocks and shrubs in the foreground.
Posted inNews

Here’s Why Resolution Copper Wants to Mine Oak Flat

by Grace van Deelen 16 October 202419 December 2024

Southeastern Arizona’s “Copper Triangle” is a hot spot for high-grade deposits, thanks to ancient magmatic activity.

2017 NASA astronaut candidates and their field instructors hike as a team. at Meteor Crater in Arizona.
Posted inFeatures

The Art of Doing Fieldwork on the Moon

Mark Betancourt, Freelance Journalist by Mark Betancourt 23 May 202412 August 2024

How ­early-career planetary scientists are preparing to support the astronauts who will return to the lunar surface and beyond.

A small village in a canyon surrounded by tall, red cliffs
Posted inNews

Ignored Paths of Uranium Exposure Illuminated by Havasupai Tribe

by Grace van Deelen 20 February 202413 September 2025

An agency-tribal partnership is identifying exposure risks previously not considered in mining risk assessments.

A firefighter stands in front of burning grass and trees.
Posted inNews

Climate Change Narrows the Window for Prescribed Fires

by Caroline Hasler 16 November 202316 November 2023

Longer, drier summers may mean fewer opportunities for firefighters to safely burn would-be wildfire fuel in the western United States.

An irrigation canal snakes by a field of lettuce outside Yuma, Ariz.
Posted inFeatures

Agriculture 3.0: Preparing for a Drier Future in the Colorado River Basin

Jane Palmer, Science Writer by Jane Palmer 5 July 20235 July 2023

Years of drought and climate change are causing water resources to dwindle in the Colorado River Basin. But farmers and scientists are collaborating to learn how to grow crops with less water.

A sign in front of a rock and a plant. Snow covers the ground.
Posted inNews

Urban Water Conservation Success in the Colorado River Basin

Jane Palmer, Science Writer by Jane Palmer 29 March 202329 March 2023

In the past few decades, cities in Arizona, Colorado, and Nevada have vastly increased their water use efficiency. They’ve also learned lessons that can inform other cities’ efforts.

Sian Proctor stands in her astronaut gear shortly after Crew Dragon’s splashdown
Posted inFeatures

Sian Proctor: Community College Professor Goes to Space

by Alka Tripathy-Lang 25 July 2022

An Arizona educator finds she has the SpaceX factor to become an astronaut.

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Features from AGU Publications

Research Spotlights

Unveiling What’s Under the Hood in AI Weather Models

30 September 202530 September 2025
Editors' Highlights

New Evidence for a Wobbly Venus?

29 September 202525 September 2025
Editors' Vox

All Publish, No Perish: Three Months on the Other Side of Publishing

29 September 202525 September 2025
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