Nuclear weapons testing

Men smoothing out the wet sand and cement on one of the islands at Eniwetok in preparation for the experimental tests.

Prior to the experimental tests at Eniwetok, palm trees were removed from some of the islands within the atoll by bulldozers and crane. The palm trees obstructed the view from scientific outposts.

Fireball and shockwave of an atomic bomb explosion, during the tests held at Eniwetok.

Burst of an atom bomb during the experimental tests at Eniwetok.

The fireball of an atomic bomb explosion during the experimental tests at Eniwetok thrusts upward causing a condensation ring formation.

Military personnel boarding an LST 45 at Hawaii, prior to departure to Eniwetok to participate in the experimental atom bomb tests.

A weather balloon is released at Eniwetok prior to the experimental tests. The balloon's flight is tracked by radar.

Preparations underway prior to the bomb tests at Eniwetok show men packing and unloading cement on one of the islands.

Unidentified scientists and engineers make a last minute check on instruments at Eniwetok prior to the tests.

Reflection of the blast of an atom bomb shows members of the crew aboard a Navy vessel watching the tests at the instant of detonation. Some crew members shield their eyes and turn their backs from the blast. Others, wearing glasses, face the blast.