The Sudbury and Wanapitei impact craters in Ontario, Canada were created by asteroids crashing into the earth billions of years ago. The nickel-rich Sudbury Basin is the large, elliptical structure (60 x 30 km).

The Sudbury and Wanapitei impact craters in Ontario, Canada were created by asteroids crashing into the earth billions of years ago. The nickel-rich Sudbury Basin is the large, elliptical structure (60 x 30 km).

The Sudbury and Wanapitei impact craters in Ontario, Canada were created by asteroids crashing into the earth billions of years ago. The nickel-rich Sudbury Basin is the large, elliptical structure (60 x 30 km).