Chien-Shiung Wu (May 31, 1912 – February 16, 1997) was a Chinese-American experimental physicist. She is best known for her work in nuclear physics and…
WASHINGTON, DC — The U.S. Postal Service issued the Bugs Bunny commemorative Forever stamps today, the character’s 80th birthday. The Bugs Bunny stamps were dedicated…
The California dogface butterfly (Zerene Eurydice) is only found in California and was designated as that state’s official state insect in 1972. The male butterfly…
The Florentine Madonna and Child stamps will be issued nationwide on Oct. 18, welcomed with a noon first-day ceremony at the Smithsonian National Postal Museum,…
WASHINGTON — The U.S. Postal Service’s first scratch-and-sniff stamps will add the sweet scent of summer to letters of love, friendship, party invitations and other…