June 2, 2009 2:51 pm Square Feet: The Nantucket Lightship This luxury yacht once belonged to the U.S. Coast Guard, but these days it’s a pretty awesome residence. Welcome aboard the Nantucket Lightship. US & World Videos 1:36 Arizona Senate repeals 1864 abortion ban 1:40 Democrats say Big Oil misled public for decades about climate change 1:45 NYPD enters Columbia University in riot gear to clear protest 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look