Situated in Siberia, the Popigai Crater is one of the largest impact structures in Russia. The impact event is believed to have contributed to a minor extinction event. ・Located in Quebec ...

One asteroid's diameter was between 5 and 8 kilometers (3-5 miles) and created the Popigai crater in Siberia, a depression 100 kilometers (60 miles) across. Another asteroid 3 to 5 kilometers (2-3 ...