The 2003 Cold Spring Harbor meeting was organized to celebrate the discovery of the structure of DNA, published in the journal Nature fifty years ago. The two scientists behind the breakthrough were James Watson (right) and Francis Crick (left). This picture of the two scientists is hanging in the bar at Cold Spring Harbor, the site of many of the liveliest discussions during the meeting. The bar is not only a place to socialize and enjoy a cold beer at the end of a long day, but a place where scientists can float their research ideas and preliminary results like trial balloons to see whether they'll fly.