Eclipse stamp

Here’s something philatelists can look forward to: The U.S. Postal Service this month plans to release a stamp that changes when you touch it. The Total Eclipse of the Sun Forever stamp, which commemorates the Aug. 21 eclipse, transforms into an image of the moon from the heat of a finger. A firstday-of-issue ceremony is planned for June 20, but the stamps can be preordered now at usps.com/shop.