What explosion
And if you are talking about the Big bang it happened about 13.7 billion years ago
If you mean, "How long ago did it occur," then the actual explosion that triggered the spill occurred on April 20th, 2010. If you are referring to the duration of the spill, then it is technically still an issue.
65 million years ago
The Big Bang
The last eruption of Mount Mazama was 7,700 years ago, too long ago for us to know how many died in the explosion.
About 4.6 billion years ago.
188997766mya
About 60 years ago.
If you mean, "How long ago did it occur," then the actual explosion that triggered the spill occurred on April 20th, 2010. If you are referring to the duration of the spill, then it is technically still an issue.
At the start of the Camrbian period, roughly 542 million years ago.
At the start of the Camrbian period, roughly 542 million years ago.
When and what explosion? One of the nuclear test shots. If so which?Remember Chernobyl was not a nuclear explosion, it was a steam explosion and graphite fire.
At the start of the Camrbian period, roughly 542 million years ago.
I assume you are referring to the Cambrian Explosion... It was a period on Earth many millions of years ago after heavy bombardment from asteroids. A huge "explosion" of species and life came to form on Earth.
The explosion of the Big Bang about 15 billion years ago.
Yes!!
Big Bang
65 million years ago