The largest nuclear bomb ever built, the Tsar Bomba, caused damage up to approximately 1,000km away.
Tsar Bomba: History's Most Powerful Weapon
On October 30, 1961, the Soviet Union detonated the most powerful weapon ever created by humanity. The Tsar Bomba exploded over the Arctic with a force of 50 megatons—that's 3,800 times more powerful than the bomb that leveled Hiroshima.
Let that sink in: a single weapon that could unleash the equivalent of 50 million tons of TNT.
An Explosion Beyond Imagination
The mushroom cloud rose 40 miles into the atmosphere—seven times the height of Mount Everest. Astronauts could have seen it from space. The fireball was 5 miles wide and nearly touched the altitude of the plane that dropped it.
The pilot, Andrei Durnovtsev, barely escaped with his life. His aircraft plummeted 1,000 meters when the shockwave hit, and he had to fight for control as the plane tumbled through irradiated sky.
Destruction on a Biblical Scale
Within a 35-kilometer radius, nothing would have survived. Every building—wood, concrete, steel—would have been obliterated. The heat would have vaporized anything organic.
At 55 kilometers, the thermal flash could still cause third-degree burns through clothing. At 100 kilometers, you'd suffer second-degree burns just from the light.
The shockwave circled the Earth three times. Seismometers worldwide detected it as a magnitude 5.0 earthquake—from a bomb detonated in the atmosphere.
And the damage? It reached almost 1,000 kilometers away. Windows shattered in Finland and Norway. Buildings trembled. Radio communications went dead for nearly an hour across massive swaths of the Soviet Union.
A Bomb Too Powerful to Build
Here's the terrifying part: this was the scaled-down version.
The Tsar Bomba was designed to yield 100 megatons. Soviet scientists cut the yield in half because the full version would have produced catastrophic fallout—roughly 26% of all nuclear fallout ever released, in a single blast.
Even at half power, the bomb was so massive it couldn't fit inside the aircraft. The 27-ton weapon hung beneath a specially modified Tu-95 bomber painted white to reflect the thermal flash.
Why It Matters
The Tsar Bomba proved something important: there's a limit to how powerful a practical weapon can be. After this test, both superpowers stopped building bigger bombs and focused on precision instead.
A single Tsar Bomba could flatten an area larger than Rhode Island. But what would you target that justified erasing 3,800 square kilometers of Earth? The weapon made its own obsolescence obvious.
Today, no nuclear arsenal contains weapons anywhere near this size. The Tsar Bomba remains humanity's most terrifying creation—a monument to what we're capable of building, and a reminder of why we shouldn't.