Stamps from the Australian Antarctic Territory (AAT) reflect Australia’s long-standing presence in Antarctica, highlighting both scientific exploration and the stark beauty of the southern continent. Issued beginning in 1957, AAT stamps often feature Emperor penguins, icy landscapes, research stations, explorers, and Antarctic wildlife, capturing the region’s unique environment and Australia’s stewardship over its claimed sector. Many issues commemorate international scientific cooperation and the history of polar expeditions. This category includes early overprints on Australian definitives as well as later pictorial sets that showcase the remote, dramatic world of Antarctica.