The U.S. Postal Service is issuing a unique stamp in honor of the total solar eclipse expected this summer!
The stamp, contains a photo of a total solar eclipse captured in Libya more than a decade ago. It’s the first stamp to use what’s called thermo-chromic ink.
When you touch the stamp, a full moon image appears. Once the stamp cools, the black eclipse becomes visible again.
The next total solar eclipse is expected to happen on August 21st.
