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An aerial view of UA Tech Parks off Rita Road and I-10. An area west of the site is planned for residential, retail and office development.

UA Tech Park to Mentor Companies in Solar Competition

Participants could win portion of $3 million. Will receive help from UA and other 'Connector' organizations.
Dense trees grow in a forest in northeastern Arizona.

Researcher Finds New Urgency for Climate Solution in Tree Recovery Lag

Professor David Breshears says trees are failing to keep up with frequency of droughts.
The largest island in the ring is the tourist mecca of Santorini (also known as Thira), while the other islands are Thirasia and Aspronisi. The three pieces are what remains after an enormous eruption destroyed most of a volcanic island. Courtesy of NASA Earth Observatory.

UA Tree-Ring Research Narrows Window for Massive Bronze Age Eruption

Newer methods helped close the gap on an ancient explosion that dimmed the sun across the Eastern Mediterranean.
Desert-adapted birds like the cactus wren, at left, have declined throughout the Mojave Desert, but not as much as other birds. Decreased rainfall because of climate change appears to be the culprit. On the right, a Costa's hummingbird.

Research Reveals Climate-Driven Bird Collapse in Mojave Desert

Deserts globally have borne the brunt of warming and drying over the past 50 years.
A health professional examines a patient.

Professor Investigating Effectiveness of Human Immune System

Janko Nikolich considers the body's defenses among its most powerful functions.
Researchers retrieve a fishing net from the Pacific Ocean in 2015.

Giant Strainer Seeks to Clean Up Oceanic Garbage Patches

An Arizona researcher says it's only one approach to an dire problem that requires a variety of mitigation strategies.
A changing climate is prolonging and intensifying heat waves, scientists say, driving wildfires.

Study: Droughts Are Growing Hotter Under Climate Change

Stressors may include environmental and social impacts of drought and heatwaves, driving more frequent wildfires, worsening air quality and stressing crops and livestock.
Researchers at UA's Cancer Center are developing new treatment for melanoma patients

UA Cancer Center Delivers Data to Help Skin Cancer Patients

The study focuses on making the immune system respond to melanoma threats.
A Border Patrol vehicle travels along a stretch of fence along the U.S.-Mexico border.

Nearly 2,500 Scientists Slam Trump's Planned Border Wall

The collective has called on the administration to follow environmental policies, and on Congress to step up action against proposals for more construction.
State-level variations in opioid prescription rates in emergency departments for ankle sprains (2014-2015).

Arizona Among States Likely to Overprescribe Opioids for Ankle Sprains

Opioids are not a first-line treatment for ankle-sprains, yet their use is common in nine states.
ALS, or Amyotrophic Lateral Sclerosis, causes the death of neurons in the human body.

UA Researchers Looking for Genes Behind ALS

Studies expected to help scientists solve mystery surrounding Lou Gehrig's disease.
Mosaic of the Valles Marineris hemisphere of Mars, by the Viking Orbiter. The Valles Marineris canyon system is visible.

Scientists Discover Liquid Lake Under Mars Ice

Arizona researcher suggests it's the strongest evidence of liquid water so far.
Monarch butterflies are among the most popular in Arizona and across the United States.

Nature Enthusiasts Help UA Researchers Tackle Butterfly Data

Volunteers' hobby turns into valuable citizen science from the field.
The sand spider, Homalonychus selenopoides, takes a dust bath after each molt.

The Secret Life of Spiders

Also on Arizona Spotlight: a new dust detection system on I-10; cumbia rhythm energizes downtown Tucson; and a story about the perils of being a king.
An illustration of the OSIRIS-REx spacecraft. Image courtesy [OSIRIS-REx Asteroid Sample Return Mission](https://www.asteroidmission.org/).

OSIRIS-REx Due To Begin Asteroid Operations Soon

UA scientists prepare for spacecraft's first photos of the asteroid Bennu.
The Apollo 8 mission control room pre-launch, in 1968, at the Kennedy Space Center.

Apollo 8 Flight Controller Recalls Landmark Mission 50 Years Ago

Charles Dietrich is among NASA heroes attending Tucson Spacefest this year.

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