Marshall, the Postal Service's general counsel and executive vice president, according to a statement.
Each stamp highlights different characteristics of the sun: Coronal Loops, Coronal Hole, Solar Flare, Active Sun, Plasma Blast and Sunspots.The SDO spacecraft was launched in 2010 and began collecting data a few months later with two imaging instruments that provide complementary views of the sun, according to NASA.It also measures the sun's magnetic field and the motion of solar material at its surface and also allows scientists to probe deep into the sun's interior, NASA said.
"What SDO has done is given us the ecology of the Sun....