Bryan and Cherry Alexander / Ice arch in Marguerite Bay at sunset, south of the Antarctic Circle, Antarctica, February 2009.

Bryan and Cherry Alexander / Iceberg in alpenglow after sunset with cloudy sky behind, Antarctica, 1998.

Tim Laman / Sunset in Cierva Cove, Antarctica, with Leopard Seal (Hydrurga leptonyx) resting on ice flow, February 2009

Tim Laman / Sunset in Cierva Cove, Antarctica, February 2009