Do home covid tests expire?

China's tech layoffs could become a self-inflicted headache for Xi

Ukraine’s most famous living composer is now a refugee

Wireless cooling device for phones created by ASU student tired of heat draining his battery

Explainer: What’s behind the new federal anti-lynching law?

Extraordinary Antarctica heatwave, 70 degrees above normal, would likely set a world record

How self-driving cars got stuck in the slow lane

Lights, camera, action! Arizona film industry is growing after a decade of stagnation

2020 census miscounted Americans – 4 questions answered

Actual greenhouse gas volumes exceed official reports

Natural 'goo' from okra and aloe could be used to filter microplastics out of wastewater – offering an alternative to harsh chemicals

How the author of ‘Feminista Frequencies’ tuned in to the inspiring voices behind Spanish-language community radio

How long should it take to grieve? Psychiatry has come up with an answer.

Climate change is already disrupting the global supply chain. Here’s how

Why the big one could be even bigger! Slow-moving central section of 800-mile long San Andreas Fault in California could play host to much larger earthquakes than previously thought, study shows

EXPLAINER: What’s behind federal anti-lynching legislation?

Group uses virtual reality to provide students with arts education

Shaming Apple and texting Musk, a Ukraine Minister uses novel war tactics

A different way of looking at Earth's 'intelligence' could benefit the whole planet

3G networks are shutting down. Here's what it means for Arizona cellphones, devices