The bomb fell on October 30, 1961, from a modified bomber over the Arctic island of Novaya Zemlya, and it yielded roughly fifty megatons, more than three thousand times the power of the Hiroshima bomb. The flash was seen hundreds of miles off, and the shock reached the ground even though the plane dropped it from high up. The sky turned white.
The device was a statement. Nikita Khrushchev wanted to awe the West and to prove Soviet skill, and his scientists built a bomb they could have made even larger but scaled back to spare the crew and the land. The test came as East and West traded nuclear threats. The hour was tense.
The scale was beyond sense. The fireball reached the edge of space, the heat was felt at a distance of a hundred miles, and the blast knocked down structures on the test isle and broke windows far across the tundra, while no weapon like it has been fired since that cold morning in the Arctic. The earth shook.
The blast pushed the United States to speed its own tests, and it fed the drive for a pact to ban such trials in the air and space. The Tsar Bomba was never a weapon of war, only a feat of fear. The age of the super-bomb peaked that day. The world drew back.