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Trinity Test, July 16, 1945 - Eyewitness Accounts

When the atomic bomb was tested near Alamogordo, New Mexico on July 16, 1945, Los Alamos scientists were the first humans to witness the power of a nuclear weapon.

Even 32 kilometers (20 miles) away, observers felt the heat of the explosion on exposed skin. The radiation level in the rising mushroom cloud was so intense that it emitted a blue glow.

All of these declassified eyewitness accounts were stamped “Secret.” Classification-declassification markings are omitted here.

Links marked with two * * now include images of the original document. More document images will be added as time allows.

Eyewitness accounts of the Trinity test by:

* Luis W. Alvarez

* * Enrico Fermi

* Kenneth Greisen

* Edwin M. McMillan

* Philip Morrison

* Robert Serber

* Maurice M. Shapiro

* Cyril S. Smith

* Victor Weisskopf

Copyright © 1995-2015 Gene Dannen
Created November 21, 1995 Last modified July 28, 2015
Gene Dannen /