Tsar Bomba, which was the largest nuclear bomb that ... That was Starfish Prime — the highest-altitude nuclear test in history. In 1962, the US government launched a 1.4 megaton bomb from ...

The flash of light from the blast was visible up to 620 miles away. The Tsar Bomba, as the test was ultimately known, had a yield between 50 and 58 megatons, twice the size of the second largest ...

The Putin ally is said to have drawn comparisons with the testing of the Tsar Bomba in 1961. He argued that test "forced the United States to negotiate with the Soviet Union and drop its ...

The Tsar Bomba wasn’t just a bomb—it was a message. In 1961, the Soviet Union detonated the largest nuclear weapon ever built, unleashing a 50-megaton explosion that was 3,000 times more ...

Photo: Atomic bomb test explosion in Alamagordo, New Mexico, July 16, 1945. AP/Wide World Photos In 1932, James Chadwick discovered the neutron, a small atomic particle with mass but no charge.