・Age: ~35.7 million years ・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.

The events took place within 25,000 years of each other. One asteroid's diameter was between 5 and 8 kilometers (3-5 miles) and created the Popigai crater in Siberia, a depression 100 kilometers ...