The answer lies in Cancer...

Someone already made a thread on this

Yes, I made a mistake and that's why edited this post. Thanks!

Meteorite storm that smashed the Earth 12,000 years ago and killed off a prehistoric people

Scientists have found compelling evidence that a meteorite storm hit the earth more than 12,000 years ago, and is likely to have been responsible for the extinction of a prehistoric people and giant animals including mammoths.

Evidence of the meteorite's intense heat was found on two continents. The researchers believe the huge cosmic impact triggered a vicious cold snap, which caused widespread destruction.

The international team found a substance known as melt glass, which forms at temperatures of 1,7000 to 2,200 degrees Celcius and can result from a 'cosmic body' hitting the earth.
The material was found in a thin layer of rock in Pennsylvania and South Carolina in the US, along with Syria. Tests confirmed the material was not of cosmic, volcanic or human-made origin.

'The extreme temperatures required are equal to those of an atomic bomb blast, high enough to make sand melt and boil,' said James Kennett, professor of earth science at UC Santa Barbara.

The melt-glass appears identical to other material found in Meteor Crater in Arizona, and the Australasian tektite field, and also matches melt-glass produced by the 1945 Trinity nuclear airburst in New Mexico in the US, Professor Kennett said.

[link to www.sott.net]

Wow, I am posting your link in the original thread. Thanks!

So what is the answer?

How do you answere without a question?

According the title he knows the answer.