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Home The U.S. Postal Service issued a set of stamps highlighting views of the Sun from NASA’s Solar Dynamics Observatory on June 18th, 2021. (U.S. Postal Service) The U.S. Postal Service issued a set of stamps highlighting views of the Sun from NASA’s Solar Dynamics Observatory on June 18th, 2021. (U.S. Postal Service)

The U.S. Postal Service issued a set of stamps highlighting views of the Sun from NASA’s Solar Dynamics Observatory on June 18th, 2021. (U.S. Postal Service)

The U.S. Postal Service issued a set of stamps highlighting views of the Sun from NASA’s Solar Dynamics Observatory on June 18th, 2021. (U.S. Postal Service)

The U.S. Postal Service issued a set of stamps highlighting views of the Sun from NASA’s Solar Dynamics Observatory on June 18th, 2021. (U.S. Postal Service)