Moon Mail: Earth's Moon Rises on New US Postage Stamp

You can now use the moon to send mail around the Earth. The U.S. Postal Service on Monday (Feb. 22) began sales of "The Moon," a new postage stamp that can be used to mail a one-ounce letter to any country to which First-Class Mail International service is available. "'The Moon' features a detailed photo of the full moon," the U.S. Postal Service (USPS) wrote in a press release.