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Hurricane Earl threatens Eastern Seaboard

<div class="meta "><span class="caption-text ">In this photograph captured with a digital SLR camera by NASA astronaut Douglas Wheelock, Earl had a distinct eye that spanned about 17 miles &#40;28 kilometers&#41;. Most of the storm had a seemingly uniform top, though the bottom edge of the image gives some sense of the towering thunderheads forming over the ocean. (NASA&#47; Douglas Wheelock)</span></div>
September 4, 2010 7:40:11 AM PDT