Imagine being able to program materials to control heat like you can control a light with a dimmer switch. By simply ...

Scientists hope to prevent deaths from climate change, but heat and cold are more complicated than we thought.

A downtown landmark, unplugged 26 years ago, could soon be lighting up the skyline again. Pima County is soliciting bids to replace the 55-year-old guts of the time-and-temperature clock on top of the ...