The blast that devastated large parts of Beirut in August was one of the biggest non-nuclear explosions in history, experts say. The Sheffield University, UK, team says a best estimate for the ...

In 1957, he launched the R-7 Semyorka, the first-ever ICBM ... N-1 moon rocket exploded each of the four times it was launched (producing, notably, the largest non-nuclear explosion in history).

"Whatever the precise charge size, this is unquestionably one of the largest non-nuclear explosions in history ... that "external interference through a rocket or bomb or other act" could also ...