|Image from source, Raw Story|
Scientists have discovered a massive 200-kilometre (124-mile) impact zone in the Australian outback they believe was caused by an asteroid which smashed into Earth more than 300 million years ago.
Andrew Glikson, a visiting fellow at the Australian National University, said the asteroid measuring 10 to 20 kilometres in diameter was a giant compared to the plunging meteor which exploded above Russia a week ago. . .
Read more at: Raw Story