Libyan desert stone evidence of comet striking earth, say scientists

Tripoli, 10 October 2013:

An unusual black stone found in the Libyan desert proves that a comet hit Earth millions of years ago and could help reveal how the solar system was formed, according to scientists at a South African university.

Sophisticated chemical analysis of the stone, described as a “mysterious black pebble,” led the team, from Johannesburg's University of Wintersrand, to conclude that it represented the first known specimen of a comet nucleus. Professor Jan Kramers said that the “euphoric” realisation came only when the team had eliminated all other possibilities.

“Comets always visit our skies . . .

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