Philadelphia's role in the country's upcoming 250th anniversary will reach a national audience now that Visit Philadelphia has launched a new campaign for the semiquincentennial in 2026. The $9 ...

Is the searing summer heat forcing you to crank up your A/C and electric fans, leading to soaring energy costs in your home? Check out this cool idea for reducing the indoor temperature, thereby ...

Every year, hundreds of millions of birds die in the United States from flying into glass. New research shows how to prevent some of those deaths. By Catrin Einhorn A thump on the window, if you’re ...