Tsar Bomba C), north of the Arctic Circle over the Novaya Zemlya archipelago in the Arctic Ocean. The bomb was dropped from an altitude of ; it was designed to detonate at a height of over the land surface ( above sea level) by barometric sensors. The original, November 1961, United States Atomic Energy Commission estimate of the yield was 55–60 megatons, but since 1992, all Russian sources have stated its yield as 58.6 megatons. First secretary Khrushchev warned in a filmed speech to the Supreme Soviet of the existence of a 100-megaton bomb (technically the design was capable of this yield.)
History of Franz Josef Land and Karl Weyprecht of Austria–Hungary on board the schooner "Tegetthoff", this expedition's primary goal was to find the north-east passage with the secondary goal of locating the North Pole. The ship left Tromsø, Norway, in July 1872 but by August had become locked in pack ice north of Novaya Zemlya. The vessel drifted and eventually reached a hitherto unknown archipelago, which they named in honor of Franz Joseph I (1830–1916), Emperor of Austria. In May 1874 Wayprecht decided that the crew of twenty-four should abandon the ice-bound ship. On August 16 they reached land at Novaya Zemlya. They followed the