![Mushroom cloud with ships below during Operation Crossroads nuclear weapons test on Bikini Atoll] | Library of Congress Mushroom cloud with ships below during Operation Crossroads nuclear weapons test on Bikini Atoll] | Library of Congress](http://tile.loc.gov/storage-services/service/pnp/ds/02900/02944v.jpg)
Mushroom cloud with ships below during Operation Crossroads nuclear weapons test on Bikini Atoll] | Library of Congress
![70th Anniversary of Operation Crossroads Atomic Tests in Bikini Atoll, July 1946 | National Security Archive 70th Anniversary of Operation Crossroads Atomic Tests in Bikini Atoll, July 1946 | National Security Archive](https://nsarchive.gwu.edu/sites/default/files/thumbnails/image/crossroad-1800.jpg)
70th Anniversary of Operation Crossroads Atomic Tests in Bikini Atoll, July 1946 | National Security Archive
![MHS Collections Online: Second Bikini Atoll atomic bomb test [2 seconds after detonation], 25 July 1946 MHS Collections Online: Second Bikini Atoll atomic bomb test [2 seconds after detonation], 25 July 1946](http://www.masshist.org//database/images11/5622_bikini_2_sec_work_ref.jpg)
MHS Collections Online: Second Bikini Atoll atomic bomb test [2 seconds after detonation], 25 July 1946
![MHS Collections Online: Second Bikini Atoll atomic bomb test [8 seconds after detonation], 25 July 1946 MHS Collections Online: Second Bikini Atoll atomic bomb test [8 seconds after detonation], 25 July 1946](http://www.masshist.org/database/images11/5623_bikini_8_sec_work_lg.jpg)
MHS Collections Online: Second Bikini Atoll atomic bomb test [8 seconds after detonation], 25 July 1946
![Photograph of the atom bomb burst at Bikini Atoll- AF 434-5C - Education Outreach - Tennessee Virtual Archive Photograph of the atom bomb burst at Bikini Atoll- AF 434-5C - Education Outreach - Tennessee Virtual Archive](https://teva.contentdm.oclc.org/digital/api/singleitem/image/p15138coll18/2432/default.jpg)