Williams of the U.S. serves during her quarter-final match against Russia's Sharapova at the Australian Open tennis tournament at Melbourne Park...Serena Williams of the U.S. serves during her quarter-final match against Russia's Maria Sharapova at the Australian Open tennis tournament at Melbourne Park, Australia, January 26, 2016. REUTERS/Thomas Peter       TPX IMAGES OF THE DAY

Thomas Peter/Reuters

Serena Williams of the U.S. serves during her quarter-final match against Russia’s Maria Sharapova at the Australian Open tennis tournament at Melbourne Park, Australia

Migrants Wait For Trains In Sub Zero Temperatures On The Serbian Border...PRESEVO, SERBIA - JANUARY 26:  A group of migrant children wait for hot food in sub zero temperatures near the Serbian-Croatian border on January 26, 2016 in Presevo, Serbia.  Migrants have been braving sub zero temperatures as they cross the border from Macedonia into Serbia. (Photo by Milos Bicanski/Getty Images)

Milos Bicanski/Getty

A group of migrant and refugee children wait for hot food in sub zero temperatures near the Serbian-Croatian border in Presevo, Serbia 

***BESTPIX***Empty Church Hosts A Skate Park In Oviedo...OVIEDO, SPAIN - JANUARY 23:  A skater practices skateboarding in a skate park inside the Santa Barbara church on January 23, 2016 in Oviedo, Spain. A collective of skaters named The Church Brigade is building and maintaining a skate park inside an abandoned church in the northern Spain village of Llanera. The church built in 1912, was once a chapel for workers and close inhabitants of a munitions factory. The factory shut down its doors by the end of the Spanish Civil war, being a front line during the early stages of the conflict. Ernesto Fernandez, founder of the collective, came across it in 2007 planning to build an open business center for factories around the church. The economic crisis forced him to change the plan and decided to share with his mates the building to practice his passion of skateboarding. Donations of skaters and visitors, and some private investment is helping the collective to build and expand ramps and facilities.  (Photo by David Ramos/Getty Images)***BESTPIX***

David Ramos/Getty

A skater practices skateboarding in a skate park inside the Santa Barbara church in Oviedo, Spain. A collective of skaters named The Church Brigade is building and maintaining a skate park inside an abandoned church in the northern Spain village of Llanera

Palestinian refugee children during cold weather in Gaza City...epa05125781 A Palestinian refugee girl poses for a photograph outside her family's small house during cold weather on a rainy day in Gaza City, the Gaza Strip, 25 January 2016.

Mohammed Saber/EPA

A Palestinian refugee girl poses for a photograph outside her family’s small house during cold weather on a rainy day in Gaza City 

Thomas Samson/AFP

Anti-riot policemen stand next to a fire during a taxi drivers demonstration against the VTC (transport vehicle with chauffeur) on Tuesday at porte Maillot in Paris 

India celebrates its 67th Republic day...epa05126440 All women unit of Central Reserve Police Force participate in the 67th Republic day function in New Delhi, India,on 26 January 2016. French President Francois Hollande was chief guest at India's Republic Day celebrations in New Delhi  with the city being placed under maximum security amid terrorist threats. India celebrates the day its constitution was adopted - January 26, 1950 - as Republic Day.  EPA/HARISH TYAGI

Harish Tyagi/EPA

All women unit of Central Reserve Police Force participate in the 67th Republic day function in New Delhi, India. French President Francois Hollande was chief guest at India’s Republic Day celebrations in New Delhi with the city being placed under maximum security amid terrorist threats. 

Iranian economy expected to grow 08 percent...epaselect epa05124618 An Iranian man sells colorful ropes at  the Tehrans old Bazaar, the place where the main economy trades take place, in Tehran, Iran, 25 January 2016. Reports state that Iranian officials expected the Iranian economy to grow on an average of eight percent over the coming five years following the lifting of sanctions against Iran.  EPA/ABEDIN TAHERKENAREH

Abedin Taherkenareh/EPA

An Iranian man sells colorful ropes at the Tehrans old Bazaar, the place where the main economy trades take place, in Tehran. Reports state that Iranian officials expected the Iranian economy to grow on an average of eight percent over the coming five years following the lifting of sanctions against Iran 

Expedition 46 On International Space Station...IN SPACE - JANUARY 20: (EDITORIAL USE ONLY) (NO SALES) In this handout image supplied by the European Space Agency (ESA), A photo of an aurora taken by ESA astronaut Tim Peake from on board the International Space Station, January 20, 2016. Expedition 46-47 crewmembers ESA astronaut Tim Peake, NASA astronaut Tim Kopra and Russian cosmonaut commander Yuri Malenchenko were welcomed aboard the International Space Station by Russian cosmonauts Mikhail Korniyenko and Oleg Kononenko, and NASA astronaut Scott Kelly for a six-month mission, as part of Expedition 46. (Photo by Tim Peake / ESA via Getty Images)

Tim Peake/ESA/Getty

An aurora photographed by ESA astronaut Tim Peake from on board the International Space Station

Gaza daily live...epa05119169 Seven years old Wafa-a (L) and her sister 10 years old Soa-ad Wahdan play next to their family house, which was damaged during Israeli war against Gaza Strip in the summer of 2014 in the east of Beit Hanun town in the northern Gaza Strip, 22 January 2016.  EPA/MOHAMMED SABER

Mohammed Saber/EPA

Seven years old Wafa-a and her sister 10 years old Soa-ad Wahdan play next to their family house, which was damaged during Israeli war against Gaza Strip in the summer of 2014 in the east of Beit Hanun town in the northern Gaza Strip

A new artwork by British artist Banksy opposite the French Embassy, in London, Monday, Jan. 25, 2016. The artwork depicts the young girl from the musical Les Miserables with tears streaming from her eyes as a can of CS gas lies beneath her. The work is criticising the use of teargas in the refugee camp in Calais. (AP Photo/Alastair Grant)

Alastair Grant/AP

A new artwork by British artist Banksy opposite the French Embassy, in London. The artwork depicts the young girl from the musical Les Miserables with tears streaming from her eyes as a can of CS gas lies beneath her. The work is criticising the use of teargas in the refugee camp in Calais 

A model wears a creation for Schiaparelli's Spring-Summer 2016 Haute Couture fashion collection, presented in Paris, France,

Francois Mori/AP

A model wears a creation for Schiaparelli’s Spring-Summer 2016 Haute Couture fashion collection, presented in Paris, France 

Germany’s Annika Beck serves during her fourth round match against compatriot Angelique Kerber at the Australian Open tennis tournament at Melbourne Park, Australia

Thomas Peter/Reuters 

Children attend a party for children affected by war and in need for psychological support, in the Douma neighborhood of Damascus...Children attend a party for children affected by war and in need for psychological support, in the Douma neighborhood of Damascus, Syria January 24, 2016. The party was organized by the Syrian Arab Red Crescent. Picture taken January 24, 2016. REUTERS/Bassam Khabieh

Bassam Khabieh/Reuters

Children attend a party for children affected by war and in need for psychological support, in the Douma neighborhood of Damascus, Syria.The party was organised by the Syrian Arab Red Crescent

French Farmers block the RN12 road near Guingamp, western France, Friday, Jan. 22, 2016.  About 60 tractors and about 200 farmers took part in Fridayís protest, among several the farmers have carried out after, they say the French government has done little to help. The farmers want more help from the government, saying they cannot pay off their expenses because prices have stagnated or fallen while they face higher expenses than their competitors elsewhere in the European Union. (AP Photo/David Vincent)

David Vincent/AP

French Farmers block the RN12 road near Guingamp, France. About 60 tractors and about 200 farmers took part in Friday’s protest after, they say the French government has done little to help. The farmers want more help from the government, saying they cannot pay off their expenses because prices have stagnated or fallen while they face higher expenses than their competitors elsewhere in the European Union 

Children walk past election po...TOPSHOT - Children walk past election poster of presidential candidate Jovenel Moise of PHTK political party in Port-au-Prince on January 21, 2016.  The second round of presidential elections is scheduled for January 24 between ruling party candidate Jovenel Moise and Jude Celestin. Celestin has said he does not want to participate in the January 24 run-off against Moise, who has yet to submit his official resignation to the Provisional Electoral Council(CEP) / AFP / HECTOR RETAMALHECTOR RETAMAL/AFP/Getty Images

Hector Retamal/Reuters

Children walk past election posters of presidential candidate Jovenel Moise of PHTK political party in Port-au-Prince, Haiti 

A member of the National Students Union of India (NSUI), the student wing of India's main opposition Congress party, shouts slogans as he got entangled in police barricade during a protest against the death of Rohith Vemula in New Delhi, India, Friday, Jan. 22, 2016. The students were protesting the death of Vemula who, along with four others, was barred from using some facilities at his university in the southern tech-hub of Hyderabad. The protesters accused Hyderabad University's vice chancellor and a federal minister of unfairly demanding punishment for the five lower-caste students after they clashed last year with a group of students supporting the governing Hindu nationalist party. (AP Photo/Altaf Qadri)

Altaf Qadri/AP

A member of the National Students Union of India, the student wing of India’s main opposition Congress party, shouts slogans as he got entangled in police barricade during a protest against the death of Rohith Vemula in New Delhi, India

Novak Djokovic of Serbia prepares to serve to  Andreas Seppi of Italy during their third round match at the Australian Open tennis championships in Melbourne, Australia, Friday, Jan. 22, 2016.(AP Photo/Andrew Brownbill)

Andrew Brownbill/AP

Novak Djokovic of Serbia prepares to serve to Andreas Seppi of Italy during their third round match at the Australian Open tennis championships in Melbourne, Australia

A trained monkey wearing a Korean traditional costumes waits to be photographed with kindergarten students after a performance at Monkey School, in conjunction with Chinese Lunar New Year celebrations in Goyang...A trained monkey wearing a Korean traditional costumes waits to be photographed with kindergarten students after a performance at Monkey School, in conjunction with Chinese Lunar New Year celebrations in Goyang, South Korea, January 22, 2016. REUTERS/Kim Hong-Ji

Kim Hong-Ji/Reuters

A trained monkey wearing a Korean traditional costumes waits to be photographed with kindergarten students after a performance at Monkey School, in conjunction with Chinese Lunar New Year celebrations in Goyang, South Korea 

Libyan oil workers try to extinguish fla...Libyan oil workers try to extinguish flames at an oil facility in northern Libya's Ras Lanouf region after it was set ablaze following fresh attacks launched by Islamic State (IS) group jihadists to seize key port terminals, on January 21, 2016.  Fighting broke out at dawn in the Ras Lanouf region, which along with the nearby Al-Sidra facility is one of the country's main oil export hubs, said the National Oil Corporation (NOC).  / AFP / STRINGERSTRINGER/AFP/Getty Images

AFP

Libyan oil workers try to extinguish flames at an oil facility in northern Libya‘s Ras Lanouf region after it was set ablaze following fresh attacks launched by Islamic State 

Supporters of the Jammu and Kashmir Libr...Supporters of the Jammu and Kashmir Libration Front (JKLF) shout pro-freedom slogans during a protest in Srinagar on January 21, 2016. Parts of the capital of Indian-administered Kashmir remained shut and rallies were held on January 21 to mark the killing of nearly sixty people by Indian security personnel in Srinagar's Gaw Kadal area on January 21, 1990. The event was followed by a series of similar incidents in and around Srinagar causing widespread anger across the valley and gave impetus to an armed insurgency which had just started in the Muslim-majority Himalayan state. AFP PHOTO / Tauseef MUSTAFATAUSEEF MUSTAFA/AFP/Getty Images

Tauseef Mustafa/AFP

Supporters of the Jammu and Kashmir Libration Front shout pro-freedom slogans during a protest in Srinagar on January. Parts of the capital of Indian-administered Kashmir remained shut and rallies were held on Thursday to mark the killing of nearly sixty people by Indian security personnel in Srinagar’s Gaw Kadal area on January 21, 1990.