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Comet Catalina Makes Brief Appearance

Discovered by Catalina Sky Survey in 2013
This image was composed from a series of images taken Oct. 12, 2015, when Lunar Reconnaissance Orbiter was about 83 miles (134 kilometers) above the moon's far side crater Compton.

Christmas Full Moon: Bright Ornament in the Sky

First holiday occurrence in 38 years; we won't have another for 19 years.
Students at the University of Arizona add their hand prints to a banner that will be displayed at the United Nations Climate Conference in Paris.

Historic Climate Accord A First Step, UA Professors Say

University of Arizona representatives say climate connects many issues
The hollow drill bit — also called an augur — collects samples while drilling.

Engineers Test Drill to Look for Life Below Martian Surface

California gypsum quarry provides terrain similar to red planet.
False-color image of a 2011 Geminid meteor, seen by a camera at New Mexico State University.

Geminid Meteor Shower to Light Up Sky This Weekend

120 visible each hour; best viewing Sunday night into Monday morning.
Sunset at Yavapai Point, along the Grand Canyon's South Rim.

Proposals Would Regulate Grand Canyon Backcountry

Activities in canyon currently governed by 3-decade-old management plan.

Arizona Spotlight for November 27, 2015

A tale of love and dedication from StoryCorp's Tucson visit; what it takes to live for a full year without processed food; exploring the true reason for flowers.
Comet C/2013 US10 Catalina shows off a compact green coma and two tails in this photo taken Nov. 22, 2015, at dawn from Arizona. The green color comes from carbon compounds fluorescing in UV sunlight. Photo by Chris Schur

Astronomer Shares 'Science Snacks' With Podcasts

Comet recording exceeded 100,000 downloads
UA Students for Sustainability will show their support at the United Nations Climate Conference in Paris with a banner covered with handprints from the UA community.

UA Delegation to Attend United Nations Climate Conference

Faculty, students and community members to observe, network, conduct research.
Computer generated image of objects in Earth orbit. Approximately 95 percent of the objects in this illustration are orbital debris (i.e., not functional satellites).

Arizona Astronomers Track Piece Of Falling Space Junk

Refuse from space mission will make fiery descent over the Indian Ocean Thursday

UA Study Finds Macular Degeneration Can Be Prevented

Eye disease causes nearly 30 percent of older Americans to lose their vision.
A California condor soars near the Grand Canyon. It is the most endangered bird in North America. It's also the largest, with a wingspan of about nine feet.

Wildfire Added to List of Threats to Condor Population

Study shows about half of wild birds live long enough to raise a chick
New Horizons captured this image of Pluto's glacial ice cap in July 2015.

'Mind-Boggling:' Pluto Fly-By Reveals Slushy Glaciers

New Horizons spacecraft took pictures in July; analysis under way in Flagstaff.
Snow collects on cactus on Tucson's northwest side.

AZ WEEK: El Niño to Bring Colder Days, Rain to Arizona

Occasional weather pattern warms Pacific Ocean, has global implications.

UA Project Aims to Untangle Medical Jargon for Patients

Management Information Systems project will put information in layman's terms for doctors.
Small Crater on Arcuate Ridge West of Olympia Mensae

AZ WEEK: Exploring Mars on Silver Screen, in UA Research

University of Arizona's connection to planetary science dates to dawn of Space Age.

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