Historic Moments on Instagram: "Footage of the Tsar Bomba, detonated by the Soviet Union in 1961 — the largest nuclear explosion ever on Earth. 💥 The blast was 3,000 times more powerful than Hiroshima, with a mushroom cloud reaching over 60 km high and shockwaves circling the planet. Built as a Cold War show of force, the bomb was so massive it had to be dropped by a specially modified bomber with a parachute attached just to let the crew escape. It was never meant for real warfare, but as a sy