The oldest and 'biggest ever' asteroid crater discovered in Greenland - suggesting huge impact more than three billion years ago. A 100 kilometre-wide crater has been found in Greenland, the result of a massive asteroid impact a billion years before any other known collision on Earth.
http://www.dailymail.co.uk/sciencetech/article-2166589/The-oldest-biggest-asteroid-crater-discovered-Greenland--suggesting-huge-impact-billion-years-ago.html
This massive object will cause tsunamis, earthquakes and obliterate natural daylight for years… Oh… and it will kill you. Similar asteroid impacts have happened and will happen on numerous occasions in our earth’s history. Today we’ll show you the biggest impact craters by diameter.
http://scribol.com/science/space/10-greatest-major-impact-craters-on-earth/
Only around 180 impact craters have ever been discovered on Earth and around 30 per cent of them contain important natural resources of minerals or oil and gas. The largest and oldest known crater prior to this study, the 300 kilometre wide Vredefort crater in South Africa, is 2 billion years in age and heavily eroded.
http://www.dailymail.co.uk/sciencetech/article-2166589/The-oldest-biggest-asteroid-crater-discovered-Greenland--suggesting-huge-impact-billion-years-ago.html
Quebec’s Lake Manicouagan is a remnant of one of the largest impact craters still preserved on the earth’s surface. Scientists believe it was created by a 5-km-wide asteroid over 200 million years ago. Today, the lake serves as a reservoir and it is an important spot for salmon fishing.
http://www.telegraph.co.uk/news/worldnews/australiaandthepacific/australia/11489673/Largest-ever-meteorite-crater-found-in-Australian-outback.html
Found on the far side of the Moon, the diameter of this impact crater is equivalent to the distance from London to Athens. The massive Aitken basin measures 2,500 kilometres (1,600 miles) across and is the largest, deepest and oldest basin on the Moon. In fact, it’s as deep as six kilometres (3.7 miles) in some places. For comparison, some of the largest impact craters on Earth are only several hundred metres deep. The Aitken basin is thought to have formed about 4.3 billion years ago, just a few hundred million years after the formation of the Moon itself. Its origin, however, remains somewhat of a mystery.
https://www.spaceanswers.com/solar-system/whats-the-biggest-visible-impact-crater-in-the-solar-system/
2:18PM GMT 23 Mar 2015. Scientists have discovered two deep scars in the earth's crust in outback Australia that are believed to mark the remains of a meteorite crater with a 250-mile diameter – the largest ever found.
http://www.telegraph.co.uk/news/worldnews/australiaandthepacific/australia/11489673/Largest-ever-meteorite-crater-found-in-Australian-outback.html
Until recently, the 2.02 billion years old and 300 km wide Vredefort crater in South Africa was considered to be both the oldest and largest impact structure on Earth. It is estimated that the impacting meteorite had a diameter of about 15 km.
http://www.dailymail.co.uk/sciencetech/article-2166589/The-oldest-biggest-asteroid-crater-discovered-Greenland--suggesting-huge-impact-billion-years-ago.html
World's Largest Asteroid Crater Found in Australia. Scientists in Australia have discovered what they say is the largest asteroid impact area ever found on Earth. WSJ's Monika Auger reports. Photo: A. Clikson. This transcript has been automatically generated and may not be 100% accurate. been ... Shelly ... discover what they say is the law just outside ... the area ... that ... the four hundred km wide impact area ... in central Australia ... consists of two separate Paccar's scientists that ...
http://www.wsj.com/video/world-largest-asteroid-crater-found-in-australia/588D3A21-EAE6-4936-A221-25205A5F0C54.html
Scientists say underground 'scars' in central Australia mark the largest meteorite crater ever found. Scientists have discovered two deep scars in the earth's crust in outback Australia that are believed to mark the remains of a meteorite crater with a 250-mile diameter – the largest ever found.
http://www.telegraph.co.uk/news/worldnews/australiaandthepacific/australia/11489673/Largest-ever-meteorite-crater-found-in-Australian-outback.html
Also the second largest impact structure on Earth, the 1.85 billion years old Sudbury crater in Canada, hosts world-class mineral deposits - in this case nickel-rich minerals that were melted and concentrated by the extreme heating caused by the impact.
http://www.dailymail.co.uk/sciencetech/article-2166589/The-oldest-biggest-asteroid-crater-discovered-Greenland--suggesting-huge-impact-billion-years-ago.html
largest  crater on earth
The largest crater on the earth is vredefort.