Adelie penguins walk past an ice sculpture spelling out the numerals 100, in front of the Australian ice breaker Aurora Australis, to mark the centenary of an Australian explorer’s epic polar voyage. Douglas Mawson, among Antarctica’s earliest pioneers, led the Australasian Antarctic Expedition between 1911 and 1914 – an ambitious scientific research trip that laid Australia’s territorial claim and presence on the icy continent.
Picture: EPA/DEAN LEWINS