At Penn’s DumoLab, researchers work to solve multiple problems: how to keep food waste out of landfills, make healthier building materials and tackle climate change.

Why the 1950s?: The decade’s blend of steam and diesel, suburban growth, and colorful freight liveries make it a favorite for historically accurate layouts. Weathering for realism: Techniques like ...

St. Louis once was the nation’s fourth-largest, home to five national political conventions, major railroad networks, ...

What once belonged purely to science fiction is steadily becoming part of everyday life. From automation to advanced tech ...

Israel steps up attacks on Gaza since Iran truce, as military says Hamas rearming Israel has escalated its attacks in Gaza in the five weeks since halting its joint bombing with the U.S. in Iran, ...