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A time lapse photograph of light pollution from Tucson reaching the Picacho Peak night sky.

Scientists: Darkness Harder to Find Due to Overpopulation

Use of artificial lights is increasing around the world; experts say tens of millions of people have never experiences truly dark skies.

Here we have the exterior of Biosphere 2 which is illuminated by a beautiful, golden sunlight.

AZ Illustrated Nature: Staying Cool in the Summer Heat

Learn about way to see nature indoors.

At-Risk Youth Get Second Chance with Landscape Training Program

The UA is helping to sustain a program led by Tucson Clean and Beautiful that gives youth on probation a second chance.

The Arizona Board of Regents recently recognized four University of Arizona professors for their work and accomplishments, and this week we have been introducing you to each of these exemplary educators. Tonight we meet Distinguished Professor Eduardo Saez in the Department of Chemical and Environmental Engineering.

Distinguished Professor: Eduardo SaƩz, Chemical/Environmental Engineering

Research in wind-blown dust, oxidation lead his work

Mt. Lemmon Sky Center

Mt. Lemmon Observatories Open House

Most of the time, access is restricted. However, an upcoming open house at the Catalina Observatories will give visitors a unique perspective of the science of astronomy.

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