US Postal Service Celebrates Upcoming Eclipse

A new postage stamp has been issued by the United States Postal Service commemorating the upcoming total solar eclipse, which will take place on Aug. 21. It is the first time a U.S. postage stamp has used thermochromic ink.

(Published Thursday, July 27, 2017)

A new postage stamp has been issued by the United States Postal Service commemorating the upcoming total solar eclipse, which will take place on Aug. 21. It is the first time a U.S. postage stamp has used thermochromic ink.