![]() ![]() Art director Antonio Alcalá designed the stamps with digital images from NASA’s Solar Dynamics Observatory, a spacecraft launched in February 2010 to keep a constant watch on the Sun from geosynchronous orbit over its ground station in New Mexico. Instead, each image is colorized by NASA according to different wavelengths that reveal or highlight specific features of the Sun’s activity. The striking colors do not represent the actual colors of the Sun as perceived by human eyesight. The Sun Science stamps highlight stunning images of the Sun that celebrate the science behind the ongoing exploration of our nearest star. The stamps will go on sale nationwide June 18, 2021, and must not be sold or canceled before the first-day-of-issue. On Jin Greenbelt, MD, the United States Postal Service® will issue the Sun Science stamps (Forever® priced at the First-Class Mail® rate) in 10 designs, in a pressure-sensitive adhesive (PSA) pane of 20 stamps (Item 480800). Plate Numbers: “B” followed by four (4) single digits in bottom two corners Manufacturing Process: Flexographic, Foil Stamping Issue Date & City: June 18, 2021, Greenbelt MD 20770Īrt Director: Antonio Alcalá, Alexandria VAĮxisting Art: NASA/Solar Dynamic Observatory Denomination & Type of Issue: First-Class Mail Forever ![]()
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