McGill Scientists Find World's Oldest Rock

In Hudson Bay on Friday, a team of scientists from McGill University in Montreal, found a sample of the oldest rocks on Earth: Nuvvuagittuq greenstone dating back more than 4.28 billion years -- 250 million years older than any other rock. Even more exciting, they could possibly provide evidence of ancient life forms.

"The rocks contain a very special chemical signature - one that can only be found in rocks which are very, very old," said Don Francis, professor of geology at McGill University in Montreal, "Nobody has found that signal any place else on the Earth."

In case you were curious, the previously identified oldest rocks date back to 4.03 billion years from Canada's Northwest Territories and the oldest minerals (specifically zircons) dated back to 4.36 billion from Western Australia.