[Project Mercury astronauts shown floating upside down during "weightless" experimental flight] [graphic].

[Project Mercury astronauts shown floating upside down during "weightless" experimental flight] [graphic]. still image Transmitted images 1950-1960. gmgpc Photographic prints 1950-1960. gmgpc [1959] eng Title devised by Library staff. NASA photo from UPI telephoto/files. Photograph added to UPI files, July 7, 1959; used by NYWTS Mar. 30, 1961. No. WAP 1191999 (File). Forms part of: New York World-Telegram and the Sun Newspaper Photograph Collection (Library of Congress). Project Mercury (U.S.)--People--1950-1960. United States. National Aeronautics and Space Administration--1950-1960. Astronauts--American--1950-1960. Space programs--American--1950-1960. New York World-Telegram and the Sun Newspaper Photograph Collection (Library of Congress) http://hdl.loc.gov/loc.pnp/cph.3c34425 No known restrictions on publication.