• Forget air mail, the U.S. Postal Service is about to introduce outer space mail ... in the form of a stamp commemorating the solar eclipse that will hit on August 21st. The really special thing about the stamp? You can change the design yourself with the touch of a finger. Body heat transforms the eclipse photo to a picture of the moon. When it cools again, the eclipse image returns. Look for it to be unveiled on June 20th – the Summer Solstice. (USA Today)