USPS releasing 1st color changing stamp commemorating solar eclipse

WASHINGTON, D.C. (WCMH/NBC News) — The stamp will change from black to the image of the moon with the touch of a finger.
The United State Postal Service announced Thursday, the Total Solar Eclipse forever stamp will be released June 20.
The first-of-its-kind stamp will feature thermochromic ink, and using he body heat of your thumb or fingers and rubbing the eclipse image will reveal an underlying image of the moon.
On Monday, August 21, 2017, the contiguous United States will experie