The Largest Impact Crater on Earth, 520 km Across, Might Be Hiding Under Australia
The largest confirmed impact crater on Earth is the near-300km-wide Vredefort impact structure in South Africa, but there could have been even larger asteroid strikes to early Earth. Erosion hides the evidence of these massive impacts, so they're tricky to find. A geologist team believes they've found one that's even bigger, spanning 520 kilometers across New South Wales, Australia. They found magnetic ripples in rocks from the region that match the roughly circular shape of an impact crater. Deep core drilling will help confirm if it's true.
