Fotografije dana

People demonstrate a home-made "smog cannon" which fires cannonballs made of "water and tobacco tar" to remind people the importance of protecting environment, in Xiangyang, Hubei province, China.

A girl plays on a swing in Dhaka, Bangladesh.

Indian schoolchildren dressed as Hindu God Lord Shiva pose for a 'selfie' ahead of their performance during an annual school function in Amritsar.

With the “day-night band” (DNB) of the Visible Infrared Imaging Radiometer Suite (VIIRS), the Suomi NPP satellite acquired this view of the aurora borealis on Dec. 22, 2016. The northern lights stretched across British Columbia, Alberta, Saskatchewan, Manitoba, Nunavut, and Northwest Territories, areas that often fall under the auroral oval.

A bull charges at Picador Rafael Torres during a bullfighting festival at the Canaveralejo bullring in Cali, Colombia, Dec. 26, 2016.

A paddle steamer Louisiana Star carrying tourists leaves Hamburg harbor in Germany.

A woman gets splashed as she walks on the coast, in Hirtshals, the northern part of Jutland, Denmark, Dec. 26, 2016.

An employee controls the arms of a manned biped walking robot "METHOD-2" during a demonstration in Gunpo, South Korea.

A murmuration of migrating starlings is seen across the sky near the city of Beer Sheva, southern Israel, Dec. 26, 2016.