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 . . .