The agency's semiquincentennial will be marked by an event at the Smithsonian's National Postal Museum in Washington, D.C., ...

One of the oldest institutions in our young country, the U.S. Postal Service turned 250 on Saturday. The agency is deeply ...

When the U.S. Constitution was ratified, Congress was granted power to establish post offices and mail routes — many along existing Native American trails. These post roads, first used by mail ...

The Intuitive Machines IM-2 'Athena' lander has captured amazing views of the moon from lunar orbit. Credit: Space.com | ...

Watch this amazing time-lapse of a totality lunar eclipse that occurred - Blood Worm Moon. Credit: Timeanddate.com | ...

The United States Postal Service's stamp price increase went into effect on Sunday, July 13. Here's how much they'll cost.

The United States Postal Service's stamp price increase went into effect on Sunday, July 13. Here's how much they cost.

The United States Postal Service's stamp price increase goes into effect on Sunday, July 13. Here's how much they'll cost.

The United States Postal Service's stamp price increase will go into effect on Sunday, July 13. Here's how much they'll cost.

A new U.S. Postal Service internal audit raises new criticism of the embattled Palmetto mail facility, which has been under fire for poor service and mail gridlock.

U.S. Postal Service workers renewed calls for protection one year after the shooting of Octavia Redmond in West Pullman.