When the U.S. Constitution was ratified, Congress was granted power to establish post offices and mail routes — many along ...

It has grown from serving the 13 colonies to reaching nearly 169 million addresses and employing more than 635,000 people.

The U.S. Postal Service is turning 250. Saturday’s anniversary comes as the agency faces financial challenges.

The one government agency that still reaches nearly every American daily — undeterred by rain, sleet, snow or even gloom of ...

Across the world, wind power is growing fast—but not fast enough. To meet climate goals and reach carbon neutrality, the United Nations says global wind energy must triple in the next ten years.