Expedition photographer JT Thomas captures an aerial view of the Lake Whillans drill site in West Antarctica, which began to take shape at the end of 2012. Dozens of scientists, engineers and technicians spent weeks at the site as they prepared to probe the lake, monitor ice sheet movement and collect sediment and water samples.  The hot water drilling facilities, labs and generators are configured as an "H" in the foreground. A tent city for researchers is in the background.