10 Greatest Major-Impact Craters on Earth

[Jaga]

very interesting comparison. I still think that the Arizona crater is the most impressive from all:

www.environmentalgraffiti.com/sciencetech/10-greatest-major-impact-craters-on-earth/1403

[Bob S]

;D Jaga.
Very interesting and the Arizona impactor would have led to a lot of destruction today.
The biggest impactor that hit Earth may not have left a crater here on Earth but there is a reminder floating above us today. About 40 or 50 Bilion years ago a Mars sized impactor may have hit Earth. The impactor weighed about 1,000 billion squared tons and had a speed of about 22,400 mph(36,000 Km/h). Much of Earth's crust and mantle were vaporized. Earth 's spin is reversed and the debris thrown off by the impact coalesces into an object that still survives today; the Moon.
This impact created a real climate change and may be responsible for the Earth we see today.