Description: On January 24, 1925, for the first time in over a century, a total solar eclipse would be visible across the northern part of the United States. How scientists used a dirigible to observe the phenomenon.
Description: When the men and women of the Smithsonian heard the call to duty in World War II, they again took up the call as they had during World War I. Secretaries Charles G. Abbot and Alexander Wetmore provided leadership that brought the Smithsonian’s resources to the aid of the nation, while safeguarding its primary mission: the increase and diffusion of knowledge. Once again,