Hydrogen bomb REVEALED: Unseen pics of blasts 20 TIMES more powerful than Hiroshima



EERIE images of huge mushroom clouds from Soviet nuclear testing offer a terrifying insight into what would happen if North Korea drops a hydrogen bomb.

The scary snaps from the 1950s show enormous clouds of white and black smoke billowing high into the air.

The Soviet Union carried out a total of 456 nuclear tests between 1949 and 1989.

It was at the Semipalatinsk site now in modern day Kazakhstan.

One image shows the mushroom cloud from the first Soviet hydrogen bomb test on August 12, 1953.

It goes some way to showcasing the utter destruction North Korea could deliver if it used one in a populated area.

Hydrogen bombs, or thermonuclear weapons, use nuclear fusion reactions.

They are many times more powerful than the first atomic bombs that only used nuclear fission.

This particular test, known as RDS-6 and Joe-4, had a yield of 400 kilotons of TNT.

Incredibly, that is 20 times more powerful than the nuclear bomb dropped on Hiroshima, Japan, by the US in 1945.

It shocked the world and swiftly ended World War 2 as Japan surrendered.

Another photo shows a 1950s Soviet atom bomb test at Semipalatinsk.

The mushroom cloud is from the detonation of the Joe-2 (RDS-2) Soviet nuclear bomb on September 24, 1951, at the same Semipalatinsk site.

This test had a yield of 38 kilotons of TNT – still nearly twice the power of the Hiroshima bomb.

The Soviet Union and the US got caught up in the Cold War after the World War ended in 1945.

Nuclear weapons changed warfare forever though.

The state of tension never broke into all-out conflict due to the policy of mutual destruction.

Both sides knew the other would just blow it to bits with nuclear weapons if they hit first – especially with the emergence of the even more powerful hydrogen bomb.

The Cold War began around 1947 and only ceased in 1991 when the Soviet Union collapsed.

The term "cold" is used because there was no large-scale fighting directly between the two sides.

Nuclear weapons – and hydrogen bombs – are back at the forefront of our minds with North Korea and Kim Jong-un threatening to use them.

It conducted a successful test earlier this month and is planning another blast over the Pacific.