University of Arizona

Watching a star explode

NASA's Astronomy Picture of the Day for March 22 features a snapshot of a supernova - a massive star explosion - discovered only a week ago.

Mar 23, 2012
4.4 / 5 (10) 3

Mesquite trees displacing Southwestern grasslands

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 ...

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

Sailing in a sea of microbes

(PhysOrg.com) -- Researchers led by Matt Sullivan at the University of Arizona are among the first to dive into the world of viruses drifting through the world's oceans.

Mar 01, 2012
5 / 5 (1) 0

Searching for planets in clouds of dust

(PhysOrg.com) -- A UA astronomy research team was awarded a $600,000 grant for technology development under NASA’s Explorer mission program. The mission would send a space telescope high above Earth's ...

Feb 10, 2012
5 / 5 (2) 2

Building mountains in a bottle

(PhysOrg.com) -- Scientists are preparing to launch a 10-year project to study water resources, gas exchange and carbon cycling in three man-made landscapes built in a half-acre laboratory at the University ...

Feb 08, 2012
4.5 / 5 (2) 0 | with audio podcast

Blip in night sky tells story of cosmic catastrophe

(PhysOrg.com) -- NASA’s Astronomy Picture of the Day, taken by Adam Block of the UA’s Mt. Lemmon SkyCenter, shows the aftermath of a stellar explosion that happened 25 million years ago in an odd-shaped ...

Jan 30, 2012
4.4 / 5 (16) 11 | with audio podcast

Scientists gear up to take a picture of a black hole

On Wednesday, Jan. 18, astronomers, physicists and scientists from related fields will convene in Tucson, Ariz. from across the world to discuss an endeavor that only a few years ago would have been regarded as nothing less ...

Jan 14, 2012
4.8 / 5 (59) 34 | with audio podcast