While rovers and orbiting spacecraft scour Mars searching for clues to its past, researchers have uncovered another piece of the Red Planet in Antarctica. The new specimen was found by a field party from the US Antarctic Search for Meteorites program (ANSMET) on Dec. 15, 2003, on an icefield in the Miller Range of the Transantarctic Mountains, roughly 750 kilometers (466 miles) from the South Pole. This 715.2 gram (1.5 pound) black rock, officially designated MIL 03346, was one of 1358 …