The Atmospheric Imaging Assembly (AIA) instrument aboard NASA's Solar Dynamics Observatory (SDO) images the solar atmosphere in multiple wavelengths to link changes in the surface to interior changes. The magnetic field can be readily visualized through the bright, thin strands that are called “coronal loops”. (Photo by NASA)

A combination photo shows a newborn giraffe being attacked by a goose at Pairi Daiza wildlife park, a zoo and botanical garden in Brugelette, Belgium, May 25, 2015. (Photo by Francois Lenoir/Reuters)

Women dressed in the traditional clothes of the Sorbs arrive for a procession in Rosenthal, eastern Germany, Monday, May 25, 2015. Traditionally on Whit Monday the Sorbs, a Slavic minority near the German-Polish border, celebrate an open air mass in the small village east of Dresden. (Photo by Jens Meyer/AP Photo)

A worker washes a city landmarks, the equestrian statue of Peter the Great known as the Bronze Horseman by French sculptor Etienne Maurice Falconet, in St. Petersburg, Russia, Monday, May 25, 2015. (Photo by Dmitry Lovetsky/AP Photo)

Phillip Williams, left, and Finlay Patterson, both of Odessa, Texas, look the B-26 aircraft on display during the Memorial Day observance at Midland International Air and Spaceport, Monday, May 25, 2015, in Midland, Texas. (Photo by Mark Sterkel/Odessa American via AP Photo)

Hundreds of students of the school of nursing take part in an open-air examination at a playground of an vocational college in Baoji, Shaanxi province, China, May 25, 2015. (Photo by Reuters/Stringer)

A young Rohingya migrant, who arrived recently by boat, plays with a water tap at a temporary shelter in Kuala Langsa, in Indonesia's Aceh Province May 25, 2015. Malaysia's police chief said on Monday that 139 graves believed to contain the remains of migrants were found near the country's border with Thailand, and that some graves contained more than one body. The graves were found at 28 suspected human trafficking camps located around 500 metres (550 yards) from the border in northern Malaysia, said Inspector General of Police Khalid Abu Bakar. (Photo by Nyimas Laula/Reuters)

Indonesian health workers check on the condition of a Rohingya migrant, who arrived recently by boat, at a temporary shelter in Kuala Langsa, in Indonesia's Aceh Province May 25, 2015. (Photo by Darren Whiteside/Reuters)

A Bangladeshi migrant, who arrived recently by boat, shaves outside a temporary shelter in Kuala Langsa, in Indonesia's Aceh Province May 25, 2015. (Photo by Nyimas Laula/Reuters)

Young Rohingya migrants, who arrived recently by boat, rest at a temporary shelter in Kuala Langsa, in Indonesia's Aceh Province May 25, 2015. (Photo by Nyimas Laula/Reuters)

A young Rohingya migrant, who arrived recently by boat, stands in front of a fan at a temporary shelter in Kuala Langsa, in Indonesia's Aceh Province May 25, 2015. (Photo by Nyimas Laula/Reuters)

Workers install wires on an electricity pylon in Chuzhou, Anhui province, China, May 25, 2015. China's state planning agency on Monday released a list of more than 1,000 proposed projects totalling 1.97 trillion yuan ($317.75 billion) that it is inviting private investors to help fund, build and operate. (Photo by Reuters/China Daily)

Multiple launch rocket systems and military trucks are seen on freight train flatcars in the Russian southern town of Matveev Kurgan, near the Russian-Ukrainian border in Rostov region, Russia, May 25, 2015. The sign reads, “Dangerous! Railway is not a place for games!”. (Photo by Maria Tsvetkova/Reuters)

Palestinian labourers buy food supplies before they cross into Israel through Hashmonaim checkpoint near the West Bank village of Nilin, west of Ramallah May 25, 2015. (Photo by Mohamad Torokman/Reuters)

A Chelsea fan sits on top of traffic lights during the Barclays Premier League Winners Parade in London on May 25, 2015. (Photo by Alan Walter/Action Images via Reuters)

Three Cunard liners, (L-R) Queen Mary 2, Queen Victoria and Queen Elizabeth arrive on the River Mersey in Liverpool, Britain May 25, 2015. The ships are in the city for the 175th anniversary of the Cunard cruise line. (Photo by Phil Noble/Reuters)

A mersey ferry passes the Cunard liner Queen Mary 2 on the River Mersey in Liverpool, Britain May 25, 2015. Three Cunard ships, Queen Mary 2, Queen Elizabeth and Queen Victoria are in the city for the 175th anniversary of the Cunard cruise line. (Photo by Phil Noble/Reuters)

The Cunard liner Queen Mary 2 performs a turn in front of the Liver buildings on the River Mersey in Liverpool, Britain May 25, 2015. (Photo by Phil Noble/Reuters)

The Red Arrows, the British Royal Air Force Aerobatic Team, fly over Cunard liners Queen Mary 2, Queen Victoria and Queen Elizabeth on the River Mersey in Liverpool, Britain May 25, 2015. (Photo by Phil Noble/Reuters)

The Cunard liner Queen Mary 2 (L) leads Queen Victoria as they arrive on the River Mersey in Liverpool, Britain, May 25, 2015. (Photo by Phil Noble/Reuters)

Contestants in the Schooner Wharf Minimal Regatta paddle their entries in Key West Florida in this May 24, 2015 handout photo. The rules of the wacky Memorial Day Weekend event required each team to build a boat out of a single sheet of 4-by-8-foot plywood, two 8-foot-long two-by-fours, a roll of duct tape, a pound of fasteners and epoxy paint. (Photo by Rob O'Neal/Reuters/Florida Keys News Bureau)

Abel Garcia, (L), portraying Cuban President Raul Castro, and Buck McQuire, dressed as Fidel Castro, carry their Schooner Wharf Minimal Regatta entry to the water in Key West Florida in this May 24, 2015 handout photo. (Photo by Rob O'Neal/Reuters/Florida Keys News Bureau)

Residents carry gas canisters as they line up to buy a 3-kilogram LPG at the Mantrijeron district in Yogyakarta, Indonesia, in this May 25, 2015 photo taken by Antara Foto. (Photo by Andreas Fitri Atmoko/Reuters/Antara Foto)

A child looks on as ethnic Miao minority performers in traditional costumes wait backstage before a performance to celebrate an annual festival, in Guiyang, Guizhou province, China, May 25, 2015. (Photo by Reuters/Stringer)

Ethnic Miao minority performers in traditional costumes take a selfie with their mobile phone after a performance to celebrate an annual festival, in Guiyang, Guizhou province, China, May 25, 2015. (Photo by Reuters/Stringer)

Ethnic Miao minority performers in traditional costumes dance during a performance to celebrate an annual festival, in Guiyang, Guizhou province, China, May 25, 2015. (Photo by Reuters/Stringer)

A man stands on a street after a protest against Burundi President Pierre Nkurunziza and his bid for a third term in Bujumbura, Burundi, May 25, 2015. (Photo by Goran Tomasevic/Reuters)

Policemen and soldiers clear a barricade during a protest against President Pierre Nkurunziza and his bid for a third term in Bujumbura, Burundi, May 25, 2015. (Photo by Goran Tomasevic/Reuters)

A protester walks during a protest against President Pierre Nkurunziza and his bid for a third term, in Bujumbura, Burundi, May 25, 2015. (Photo by Goran Tomasevic/Reuters)

A protester holds a monkey after a protest against Burundi President Pierre Nkurunziza and his bid for a third term in Bujumbura, Burundi, May 25, 2015. (Photo by Goran Tomasevic/Reuters)

Protesters walk on a street during a protest against President Pierre Nkurunziza and his bid for a third term in Bujumbura, Burundi, May 25, 2015. (Photo by Goran Tomasevic/Reuters)

Policemen and soldiers clear a barricade during a protest against President Pierre Nkurunziza and his bid for a third term in Bujumbura, Burundi, May 25, 2015. (Photo by Goran Tomasevic/Reuters)

A protester jumps over a barricade during a protest against President Pierre Nkurunziza and his bid for a third term, in Bujumbura, Burundi, May 25, 2015. (Photo by Goran Tomasevic/Reuters)

A soldier fires an AK-47 rifle during a protest against President Pierre Nkurunziza and his bid for a third term, in Bujumbura, Burundi, May 25, 2015. (Photo by Goran Tomasevic/Reuters)

A masked Burundian protester faces soldiers in front of a burning barricade during an anti-government demonstration against President Pierre Nkurunziza's bid for a third term in the capital Bujumbura, Burundi, 25 May 2015. Street protests continued on 25 May as the United Nations Secretary-General Ban Ki-moon condemned the killing of the leader of the oppsition party Union for Peace and Development (UPD) Zedi Feruzi who opposed Nkurunziza's bid. (Photo by Dai Kurokawa/EPA)

Two men carry a painting as they make their way past graffiti “Athena vs Europa, Resist vs Submit”, which depicts the ancient statue of Goddess Aphrodite of Milo wearing a scarf and a wreath consisting of the stars of the European Union flag, made by French street artist Goin in Athens May 25, 2015. Greece intends to make good on its debt obligations but needs aid urgently to be able to do so, the government said on Monday, after several senior officials insisted Athens had no money to pay a loan instalment falling due next week. (Photo by Alkis Konstantinidis/Reuters)

Police and onlookers gather near the damaged coaches of a passenger train after it derailed in Kaushambi district, in the northern state of Uttar Pradesh, India, May 25, 2015. At least two passengers were killed and seven others injured when eight bogies of a passenger train derailed in the district on Monday, a railway official said. (Photo by Jitendra Prakash/Reuters)

Police and onlookers gather around the damaged coaches of a passenger train after it derailed in Kaushambi district, in the northern state of Uttar Pradesh, India, May 25, 2015. (Photo by Jitendra Prakash/Reuters)

The trunk of a newborn Asian elephant is seen next to his mother Farina at Pairi Daiza wildlife park, a zoo and botanical garden in Brugelette, Belgium, May 25, 2015. (Photo by Francois Lenoir/Reuters)

A combination photo shows a newborn Asian elephant falling next to his mother Farina at Pairi Daiza wildlife park, a zoo and botanical garden in Brugelette, Belgium, May 25, 2015. (Photo by Francois Lenoir/Reuters)