College of Science

The green circles in this satellite image of southwestern Kansas are crops being watered by central pivot irrigation, which draws water from a well in the center of each field. Some of the water is groundwater from deep under the Great Plains states. (Credit: NASA)
June 19, 2019
A new study led by a UA hydrologist is the first to examine the impact of large-scale groundwater pumping that began in the U.S. in the 1950s on surface waters.
June 18, 2019
In a new paper, UA psychologist Lee Ryan and her collaborators propose a precision aging model designed to help researchers better understand and treat age-related cognitive decline on an individual level.
Apollo 17 astronaut Harrison “Jack” Schmitt stands next to a steep-walled crater named Shorty on Dec. 13, 1972. The UA's Jessica Barnes is among the scientists selected by NASA to be granted access to previously unopened samples, including some collected during NASA's last manned mission to the moon. (Photo: NASA)
June 18, 2019
Thanks to new technological tools, moon samples collected by the Apollo astronauts a half-century ago hold answers to questions that weren't even on scientists' minds at the time.
Subtropical Storm Andrea, which formed on the evening of May 20, is this year's first named storm. The UA forecasting model predicts a total of 16 named storms this year. (Image: NOAA)
June 14, 2019
The UA Hurricane Forecast predicts there will be eight hurricanes during this year's Atlantic hurricane season, which started on June 1.
According to a hypothesis developed by UA alumni William Hartmann and Donald Davis, the moon was formed from a debris blown off primordial Earth by a giant impact during Earth's formation. Their 1974 paper introduced what is now the leading theory of lunar origin. (Image: William Hartmann)
June 12, 2019
Where did the moon come from? The Giant Impact Theory germinated in the mind of a UA graduate student as he mapped the surface of the moon and is still cited today as scientists learn more about our celestial neighbor.
William Hartmann projecting photographic plates of the moon onto a white globe to create the Rectified Lunar Atlas. (Courtesy: UA Lunar and Planetary Laboratory)
June 4, 2019
For decades, UA scientists have contributed to the research that has shaped our understanding of our solar system and the universe – beginning with the Apollo 11 mission 50 years ago.
June 3, 2019
A bad night's sleep may result in a spike in blood pressure, offering a possible explanation for why sleep problems have been shown to increase the risk of heart attack, stroke and even death from cardiovascular disease.
The retreat of Mars' polar cap of frozen carbon dioxide during the spring and summer generates winds that drive the largest movements of sand dunes observed on the red planet. (Image: NASA/JPL/University of Arizona/USGS)
May 22, 2019
In the most detailed analysis of how sands move around on Mars, a team of planetary scientists led by the UA found that processes not involved in controlling sand movement on Earth play major roles on Mars.
This image highlights areas in a brain with PPA during a language task where researchers observed functional abnormality (green) and structural degenerating (yellow). The green areas may be at-risk or dysfunctional, even if the neurons are not yet dead. (Image courtesy of Aneta Kielar)
May 15, 2019
Researchers might have found a way to detect neurodegeneration before brain cells are lost for good. Earlier detection could provide therapeutic drug treatments a chance to work.

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