News

Meteorites Date Moon-Forming Impact Event

Through a combination of data analysis and numerical modeling work, researchers have found a record of the ancient moon-forming giant impact observable in stony meteorites. The research indicates numerous kilometer-sized fragments from the giant impact struck main belt asteroids at much higher velocities than typical main belt collisions.

Accelerating Universe: Not As Fast?

A UA-led team of astronomers has found that the expansion of the universe since the Big Bang might not be quite as fast as textbooks say, thanks to a diversity of supernovae.

Ecosystem Metaphor May Apply to Humans

Principles from biological systems that are parallel to human systems may provide ways of understanding how human groups — and even terrorist organizations — function.

E-Week: Fun, Games and Brains

With 28 student clubs participating, this year's edition could be the biggest one yet in promoting engineering to the UA campus and the community.

UA-Led Study Resolves Reptilian Family Tree

New research has helped settle the relationships among the major groups of lizards and snakes, and it has implications for future studies in ecology and evolutionary biology.

UA Team Wins $100,000 in Water Challenge

Through "Beyond the Mirage," Arizonans will create and share their own mini-documentaries on a website that is expected to launch in January.

EarthWeek 2015 to Showcase Student Research

The annual student-organized event, now in its sixth year, will include 110 poster presentations, 111 oral presentations and five keynote speakers.

OSIRIS-REx Mission Passes Milestone

Assembly, launch and test operations have begun at Lockheed Martin in Denver, representing a critical stage of the program when the spacecraft begins to take form.

A Better Method for Forecasting Hurricane Season

Damages from U.S. hurricanes between 1970 and 2002 cost $57 billion. UA scientists say that better predictions can help with emergency preparedness, which could limit damages, cut costs and save lives.

Galaxy Clusters Formed as 'Fireworks'

Observations with UA observatories in Arizona and space observatories reveal glimpses into how today’s galaxies came to be. Using one-of-a-kind instrumentation, astronomers were able to study large numbers of "mystery galaxies."

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