Summary:

- The article discusses a new study published in the journal Nature that has found evidence of a giant impact crater beneath the Hiawatha Glacier in northwestern Greenland.
- The crater, which is estimated to be around 31 kilometers (19 miles) in diameter, is believed to have been formed by a meteorite impact that occurred less than 3 million years ago, making it one of the youngest known impact craters on Earth.
- The discovery of this crater provides new insights into the geological history of Greenland and the potential impact of large meteorite strikes on the planet's climate and environment.