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Sun Science

First Day of Issue Date: June 18, 2021

First Day of Issue Location: TBA

About This Stamp

With these stamps, the U.S. Postal Service highlights stunning images of the Sun that celebrate the science behind the ongoing exploration of our nearest star.

The images on these stamps come from NASA’s Solar Dynamics Observatory, a spacecraft launched in February 2010 to keep a constant watch on the Sun from geosynchronous orbit above Earth. The striking colors in these images do not represent the actual colors of the Sun as perceived by human eyesight. Instead, each image is colorized by NASA according to different wavelengths that reveal or highlight specific features of the Sun’s activity.

One of the stamps highlights sunspots, two feature images of coronal holes, two show coronal loops, two depict plasma blasts, one is a view of an active Sun that emphasizes its magnetic fields, and two show different views of a solar flare.

Heliophysics, the study of the Sun and its influence on the planets and space surrounding them, has important implications for our day-to-day lives. Although the space between the Sun and Earth appears empty to human eyes, it is actually full of particles and energy from the constant flow of solar wind emitted by the Sun. That space is affected by a complex, ever-changing magnetic field that influences our entire solar system. Increased understanding of the Sun helps us better explain and predict its impact not only on Earth’s climate but also on the near-Earth space environment and its impact on sensitive human technology, such as communications systems and satellite electronics. As humanity continues to explore space, a deeper knowledge of solar activity will also make it possible to identify and solve problems involved in communications, data collection, spacecraft and satellite design, and the effects of space radiation on the human body.

Art director Antonio Alcalá designed these stamps with images provided by NASA. The Sun Science stamps are being issued as Forever® stamps in panes of 20. These Forever stamps are always equal in value to the current First-Class Mail® one-ounce price.

Stamp Art Director, Stamp Designer

Antonio Alcalá

Antonio Alcalá served on the Postmaster General’s Citizens' Stamp Advisory Committee from 2010 until 2011, when he left to become an art director for the U.S. Postal Service's stamp development program.

He is founder and co-owner of Studio A, a design practice working with museums and arts institutions. His clients include: the National Gallery of Art, Library of Congress, National Portrait Gallery, National Museum of Women in the Arts, The Phillips Collection, and Smithsonian Institution. He also lectures at colleges including the Corcoran College of Art + Design, SVA, Pratt, and MICA.

In 2008, his work and contributions to the field of graphic design were recognized with his selection as an AIGA Fellow. He has judged international competitions for the Society of Illustrators, American Illustration, AIGA, and Graphis. Alcalá also serves on the Smithsonian National Postal Museum and Poster House Museum’s advisory councils. His designs are represented in the AIGA Design Archives, the National Postal Museum, and the Library of Congress Permanent Collection of Graphic Design.

Alcalá graduated from Yale University with a BA in history and from the Yale School of Art with an MFA in graphic design. He lives with his wife in Alexandria, Virginia.

Existing Art: NASA/Solar Dynamics Observatory

First Day of Issue Ceremony

First Day of Issue Date: June 18, 2021
First Day of Issue Location: TBA

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