Results for "African Americans -- Washington (D.C.)"
Tyrone Solar Station, Burro Mountain, NM
- Date: c. 1940
- Creator: Unknown
- Creator: Unknown
The End of Operation Moonwatch
- Date: 1975
- Creator: Unknown
- Creator: Unknown
Giuseppe Colombo at Work
- Date: 1974
- Creator: Unknown
- Creator: Unknown
Dr. Earl S. Johnston
- Date: 1936
- Creator: Unknown
- Creator: Unknown
Super-Schmidt Camera Installation in New Mexico
- Date: c. 1960
- Creator: Unknown
- Creator: Unknown
Constructing 84-foot Radio Telescope
- Date: c. 1968
- Creator: Smithsonian Astrophysical Observatory
- Creator: Smithsonian Astrophysical Observatory
Walter Munn and the K-50 Geodetic Camera
- Date: c. 1970
- Creator: Smithsonian Astrophysical Observatory
- Creator: Smithsonian Astrophysical Observatory
Loyal B. Aldrich and Others at SAO Site
- Date: c. 1920
- Creator: Unknown
- Creator: Unknown
Whipple Observatory Volunteers
- Date: c.1990
- Creator: Brocious, Daniel
- Creator: Brocious, Daniel
Postcard of Sun Tower at Mt. Wilson
- Date: c. 1930s
- Creator: Unknown
- Creator: Unknown
Corbitt, Whipple & Udall at Mt. Hopkins Observatory
- Date: 1968
- Creator: Unknown
- Creator: Unknown
Building Shelter at Mt. Whitney, California
- Date: 1909
- Creator: Unknown
- Creator: Unknown
