More than 150 cruise-ship passengers and crew took to lifeboats in Antarctic waters early Friday and were rescued after their ship hit an iceberg or some other object, Argentine navy and British Coast Guard officials said, according to AP. A fist-sized hole was punched in the hull of the MS Explorer when it struck an object before dawn in frigid waters near the South Shetland Islands and Graham Land, an Antarctic peninsula, the British Coast Guard said. On calm seas, the passengers and crew were safely moved aboard a Norwegian cruise ship, according to Susan Hayes, a representative of Gap Adventures, operator of the tour aboard the Explorer.