Gosses Bluff, Australia

Credit: Credit: NASA/USGS, Posted on: Sunday, 4 April 2004, 06:00 CDT Download full size image

142 million years ago, an asteroid or comet slammed into what is now the Missionary Plains in Australia’s Northern Territory, forming a crater 24 kilometers in diameter. Today, like a bull’s eye, the circular ring of hills that defines Gosses Bluff stands as a stark reminder of the event. This image was acquired by Landsat 7’s Enhanced Thematic Mapper plus (ETM+) sensor.

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