Human-driven changes in the westerly winds are bringing hotter and drier springs to the American Southwest, according to new research from The University of Arizona in Tucson.
Aug 19, 2008
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(PhysOrg.com) -- An odd, solitary hill rising part-way down an eroding slope in Mars' north polar layered terrain may be the remnant of a buried impact crater, suggests a University of Arizona planetary scientist ...
Oct 16, 2008
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Two Earth-sized planets have been discovered circling a dying star that has passed the red giant stage. Because of their close orbits, the planets must have been engulfed by their star while it swelled up ...
Dec 21, 2011
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(PhysOrg.com) -- Astronomers have imaged a very young brown dwarf, or failed star, in a tight orbit around a young nearby sun-like star. The discovery is expected to shed light on the early stages of solar ...
Jul 29, 2010
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If you are like most people, you probably enjoy the twinkling of stars that blanket the sky on a clear summer night. If you are an astronomer, chances are you find it extremely annoying.
Aug 04, 2010
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(PhysOrg.com) -- Computer simulations of the atmospheric circulation on Jupiter-like planets around other stars can explain temperature observations of these planets and shed light on the exotic weather experienced ...
Oct 13, 2008
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Fire's potent and pervasive effects on ecosystems and on many Earth processes, including climate change, have been underestimated, according to a new report.
Apr 23, 2009
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A team led by University of Arizona astronomer Joshua Eisner has observed in unprecedented detail the processes giving rise to stars and planets in nascent solar systems.
Jun 11, 2010
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(PhysOrg.com) -- University of Arizona astronomers have helped solve a mystery surrounding the birth of stars in galaxies that has long puzzled scientists. Their results are published in the Feb. 11 issue ...
Feb 11, 2010
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(Phys.org) —University of Arizona geneticists have discovered the oldest known genetic branch of the human Y chromosome – the hereditary factor determining male sex.
Mar 04, 2013
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PIC=32536:left]Increasing temperatures at high altitudes are fueling the post-1950 growth spurt seen in bristlecone pines, the world's oldest trees, according to new research.
Nov 16, 2009
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University of Arizona sociologist Jane Zavisca says the two countries are polar opposites when it comes to mortgage financing.
May 19, 2011
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(PhysOrg.com) -- The researchers evaluated the recent declines using snowpack reconstructions from 66 tree-ring chronologies, looking back 500 to more than 1,000 years.
Jun 09, 2011
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Warming of the ocean's subsurface layers will melt underwater portions of the Greenland and Antarctic ice sheets faster than previously thought, according to new University of Arizona-led research. Such melting ...
Jul 03, 2011
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(Phys.org)—A new study has found that climate-prediction models are good at predicting long-term climate patterns on a global scale but lose their edge when applied to time frames shorter than three decades ...
Sep 18, 2012
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