Melbourne, Australia: The sun sets at the Rod Laver Arena during the Australian Open tennis tournament
Anchorage, Alaska: A mallard looks for a place to land among the hundreds of ducks in sub-zero temperatures
Gaza City: A Palestinian rides on horseback on the beach
Calcutta, India: Christians participate in a peace prayer
San Sebastián, Spain: Tamborileros leave Saint Maria Church during the main day of the San Sebastián feast
Delhi, India: A man bathes as he pours cold water over his head in a market on a cold winter morning
Sao Paulo, Brazil: A model presents a creation by designer R Rosner during Sao Paulo Fashion Week
Sana'a, Yemen: A female protester's hands
painted in the colors of the Yemeni flag during a protest against
granting immunity from prosecution to outgoing President Saleh
Barcelona, Spain: Artists perform during the rehearsal of the Canadian group Cirque Du Soleil's Corteo
Malabo, Equatorial Guinea: Boys practise their soccer skills as the African Cup of Nations begins
A view of the Helix Nebula (NGC 7293), a planetary nebula located 700 light years away
Wijk, Netherlands: The Aztec Maiden, a
Philippines-registered freighter, is seen off a beach after running
aground off the Dutch coast
New York, USA: People attend the annual winter antiques show at the Park Avenue Armory
Melbourne, Australia: The sun sets at the Rod Laver Arena during the Australian Open tennis tournament