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Kenneth Skinner’s house sits on a hillside in north Phoenix on July 1, 2022. The home is constructed with expanded polystyrene foam and Sabscrete, a concrete mix developed by Strata International Group.

Amid global climate change and a chronic shortage of affordable housing, Arizona construction companies and nonprofits are taking innovative steps to make homes more energy efficient and environmentally sustainable. Read more»

The left side of a Bushmaster Ar-15 lower receiver.

A Texas firearms parts dealer asked a federal judge to block a Biden administration rule targeting "ghost guns" it claims will shutter its business - a rule also being challenged by Arizona and other GOP states on behalf of a North Dakota gun shop. Read more»

Jemma Starks, 2 1/2 years old, points out her heart defect on a 3D printed replica. Her mother, Stephanie Starks, was shocked to learn Jemma had congenital heart disease.

3D printed organs may look like a toy but have serious goals. Surgeons can practice on an exact duplicate of a patient before surgery and families can better understand what loved ones are going through. Read more»

Researchers from the Illinois Institute of Technology, University of Texas at Austin and Ecole des Ingénieurs de la Ville de Paris said the problem lies in the process of creating 3-D printed material.

3-D printing clearly has it's benefits, but a recent study has revealed a major concern. Read more»

Second Amendment advocates plan to manufacture guns at the Texas Capitol during an armed rally set next week. Come and Take it Texas announced late Monday that it had purchased “the Ghost Gunner,” a machine that uses 3-D technology to build firearms, for use at the Jan. 13 event, where participants had already planned to carry rifles and shotguns to protest the state’s gun laws. Read more» 1

Kylie Zhang accepting the Gold Prize in the Shing-Tung Yau High School Mathematics Awards in Beijing.

Over 400 teams from around the world recently competed in a high school mathematics competition in Beijing, China. Among them was Kylie Zhang, an 18-year-old senior at St. Gregory in Tucson. Although she was the sole member of her team, Zhang's new 3-D printing method won the Gold Prize. Read more»