ALMA Exposes Hidden Star Factories in the Early Universe

  • UANews
  • March 13, 2013
Using entire galaxies as gigantic gravitational lenses, UA astronomers have obtained new measurements of some of the oldest galaxies in the universe. Their observations reveal that some of the most vigorous bursts of star birth in the cosmos took place much earlier than previously thought.

Honey Bee Visits Affected by Flower Density

  • Western Farm Press
  • March 12, 2013
Ever wonder how the density of flowers in a patch influences the kinds of insects that visit it? Carla Essenberg of the UA Center for Insect Science did, and she proceeded to develop a mathematical "foraging model" that explores how flower visitors distribute themselves across floral patches differing from each other in density.

Female Lemurs Play It Safe, Live Longer, Study Suggests

  • UANews
  • March 12, 2013
Females of a little-known primate from the rainforests of Madagascar have been known to outlive their male peers by many years, despite no obvious differences in hormone levels or lifestyle. A team led by a UA anthropologist has found the likely answer to the mystery.

Monsoon Failure Key to Long Droughts in Southwest

  • UANews
  • March 11, 2013
Long-term droughts in Southwestern North America often mean failure of both summer and winter rains, according to new tree-ring research from a UA-led team. The finding contradicts the commonly held belief that a dry winter rainy season is generally followed by a wet monsoon season, and vice versa.

Google Awards Grant for UA-Developed Online Chemistry Course

  • UANews
  • March 7, 2013
Google, Inc. has granted a UA chemistry professor $50,000 to develop a free online course to teach chemistry to potentially hundreds of thousands of students. Katrina Miranda is creating a massive open online course, aiming to explain higher-level and abstract chemistry concepts that build on the science's fundamentals to students worldwide.

The Making of Antarctica’s Hidden Fjords

  • UANews
  • March 5, 2013
Antarctica's topography began changing from flat to fjord-filled starting about 34 million years ago, according to a new report from a UA-led team of geoscientists. Knowing when Antarctica's topography started shifting from a flat landscape to one with glaciers, fjords and mountains is important for modeling how the Antarctic ice sheet affects global climate and sea-level rise.

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