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![](https://webarchive.library.unt.edu/eot2008/20081106125306im_/http://nsf.gov/images/x.gif) Discovery Crumbling Walls of Ancient Chesapeake Bay Crater Threaten Regional Groundwater Supplies
![](https://webarchive.library.unt.edu/eot2008/20081106125306im_/http://nsf.gov/images/greenlineshort.jpg)
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![Ilustration of a crater formed from the impact of a comet or asteroid in Chesapeake Bay.](https://webarchive.library.unt.edu/eot2008/20081106125306im_/http://nsf.gov/news/mmg/media/images/ches_impact1_f.jpg) |
A crater from a long-ago comet or asteroid impact in the Chesapeake Bay is buried beneath hundreds of feet of sediment.
Credit: Nicolle Rager-Fuller, NSF |
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![Cover of June 27, 2008 Science magazine.](https://webarchive.library.unt.edu/eot2008/20081106125306im_/http://nsf.gov/news/mmg/media/images/ches_impact2_f.jpg) |
The researchers' findings were published in the June 27, 2008, issue of Science magazine.
Credit: Copyright 2008 AAAS |
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