LiveScience: Researchers have found signs of life in mud pulled from the bottom of an ice-covered lake in Antarctica. Studying microbes in such extreme and closed-off environments could help scientists understand how life may thrive in the harshest places on Earth and potentially other planets. Scientists with the British Antarctic Survey and other institutions drilled through the ice sheet to dig up clean sediment samples from the bottom of Lake Hodgson, which is on the Antarctic Peninsula and 305 feet (93...