Where is the largest known meteor crater on Earth?
Quick Answer
It is in northwestern Greenland, beneath the Hiawatha Glacier. Scientists identified it from radar data, and it is thought to be about 31 kilometers wide.
The Full Story
The Hiawatha crater lies under the Hiawatha Glacier in northwestern Greenland, near the edge of the Greenland Ice Sheet. It was identified in 2018 using radar and ice-penetrating observations, and researchers estimate it is roughly 31 kilometers across. The structure is buried under hundreds of meters of ice, which is why it remained hidden for so long. Its exact age is still debated, but it is one of the most significant impact structures discovered in recent decades. The find has sparked interest because of its potential links to climate and ancient environmental change.
Key Facts
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