As the desert Southwest becomes hotter and drier, semi-arid grasslands are slowly being replaced by a landscape dominated by mesquite trees, such as Prosopis velutina, and other woody shrubs, a team of University ...

Biology - Ecology

Mar 18, 2012 4.8 / 5 (6) 13 |

(PhysOrg.com) -- University of Arizona researchers are among a group of scientists who have discovered a source of previously scarce small RNA molecules. Their finding, which was recently published in the Proceedings of th ...

Biology -

Nov 13, 2008 4 / 5 (7) 0

Undergraduate researcher Safatul Islam is a member of a team in the College of Optical Sciences investigating organic photovoltaics, which can lead to improved electronics.

Technology - Energy & Green Tech

Aug 16, 2011 4.7 / 5 (6) 0

(PhysOrg.com) -- New images from the HiRISE experiment detail patterns of dust carried by gas from beneath the seasonal ice cap.

Space & Earth - Space Exploration

Mar 25, 2009 4.5 / 5 (6) 0

Some algae have been hanging together rather than going it alone much longer than previously thought, according to new research.

Biology -

Feb 19, 2009 4.3 / 5 (6) 10

(PhysOrg.com) -- The extraterrestrial rock is tumbling through space alongside thousands of similar objects in our solar system's main asteroid belt, roughly between the orbits of Mars and Jupiter.

Space & Earth - Space Exploration

Dec 21, 2010 4.3 / 5 (6) 0 |

Inhibiting a molecular process cells use to direct proteins to their proper destinations causes more than 90 percent of affected mosquitoes to die within 48 hours of blood feeding, a UA team of biochemists ...

Chemistry - Biochemistry

Jul 18, 2011 4.3 / 5 (6) 5 |

With the 2015 sesquicentennial of Abraham Lincoln's death approaching, interest in it is rising, and with new scientific tools, UA researchers have turned their attention to one of the last remaining mysteries ...

Other Sciences - Other

Apr 26, 2013 4.3 / 5 (6) 3

(PhysOrg.com) -- UA meteorite curator Marvin Killgore has found what is to date the largest fragment of an object that exploded in the skies over Wisconsin in April.

Space & Earth - Space Exploration

May 05, 2010 5 / 5 (5) 0 |

Security systems could be more effective if officials looked at how organisms deal with threats in the natural world, University of Arizona researchers suggest in the May 20 edition of the journal Nature.

Biology - Other

May 20, 2010 5 / 5 (5) 0 |

A newly identified relationship between a fly and a weedy mustard-type plant promises to answer many long-standing questions surrounding the evolutionary arms race between plant-eating insects and their host ...

Biology - Plants & Animals

Nov 19, 2010 5 / 5 (5) 0 |

For the first time, scientists have found convincing evidence for the presence of liquid water in a comet, shattering the current paradigm that comets never get warm enough to melt the ice that makes up the ...

Space & Earth - Space Exploration

Apr 05, 2011 5 / 5 (5) 5 |

(PhysOrg.com) -- Alfred McEwen, professor of planetary science at the UA's Lunar and Planetary Laboratory and principal investigator of the largest imaging campaign ever launched to another planet, has been ...

Space & Earth - Space Exploration

Jul 01, 2011 5 / 5 (5) 0

(PhysOrg.com) -- New University of Arizona research has discovered that seed beetles from the desert Southwest shelter their broods from attacking parasitic wasps under a stack of dummy eggs.

Biology - Plants & Animals

Sep 14, 2011 5 / 5 (5) 2 |

(PhysOrg.com) -- A new software tool developed by the HiRISE team in the UA's Lunar and Planetary Lab allows members of the public to download high-resolution images of the Martian landscape almost instantaneously ...

Space & Earth - Space Exploration

Dec 08, 2011 5 / 5 (5) 29 |