As the weather grows cold this winter, you may be one of the many Americans pulling their winter jackets out of the closet.

Physicists at the University of Colorado Boulder have designed a new material for insulating windows that could improve the energy efficiency of buildings worldwide—and it works a bit like a high-tech ...

Researchers have long chased a deceptively simple goal in building design: glass that lets in the view and daylight, but not the heat that drives up energy bills. That ambition is now much closer to ...