Taking advantage of a weightless environment onboard the Earth-orbiting International Space Station, Expedition 34 Flight Engineer Chris Hadfield of the Canadian Space Agency juggles some tomatoes, which he probably considers to be among the more delicious components of a recent «package» that arrived from Earth, in this Handout photo courtesy of NASA. Reuters Archive. Photo by NASA

Women queue to receive free clothes at a makeshift camp for refugees and migrants at the Greek-Macedonian border near the village of Idomeni, Greece, May 12, 2016.Photo by Marko Djurica

People react as they see North Korean leader Kim Jong Un during a mass rally and parade in the capital’s main ceremonial square, a day after the ruling party wrapped up its first congress in 36 years by elevating him to party chairman, in Pyongyang, North Korea, May 10, 2016.

Photo by Damir Sagolj

Smoke and flames from the wildfires erupt behind a car on the highway near Fort McMurray, Alberta, Canada, May 7, 2016. Photo by Mark Blinch

Palestinians wait for their relatives to return to Gaza from Egypt through the Rafah border crossing, after it was opened by Egyptian authorities on Wednesday for two days for the first time in three months, in the southern Gaza Strip May 12, 2016. Photo by Suhaib Salem

Violins made by students hang to dry at a laboratory of the Antonio Stradivari institute of higher education in Cremona, Italy. Date imported, May 12, 2016. Photo by Stefano Rellandini

Brazil’s President Dilma Rousseff, accompanied by Chief of Staff Jaques Wagner, looks from a window at Planalto Palace in Brasilia, Brazil, May 11, 2016.Photo by Adriano Machado

Students are hit by a riot police water cannon during a demonstration to demand changes in the education system in Santiago, Chile, May 11, 2016. Photo by Ivan Alvarado

Mothers, relatives and people hold pictures of missing people as they march on «Mother’s Day» celebrated annually on May 10, to demand justice for their kin who have disappeared and for those who have been victims of forced disappearances in Mexico City, Mexico, May 10, 2016. Photo by Henry Romero

A 500-metre (1,640-ft.) aperture spherical telescope (FAST) is seen at the final stage of construction, among the mountains in Pingtang county, Guizhou province, China, May 7, 2016.Photo by China Stringer Network

This artist’s concept depicts select planetary discoveries made to date by NASA’s Kepler space telescope in this image released May 10, 2016. Photo by NASA

Dave Henson of Britain runs to victory in the men’s 200m race during the Invictus Games in Orlando, Florida, U.S., May 10, 2016.Photo by Carlo Allegri

Brazilian badminton players Lohaynny Vicente (R), 20, and her sister Luana Vicente, 22, pose for a photograph on the roof of a house in Chacrinha favela in Rio de Janeiro, Brazil. Date imported, May 11, 2016.Photo by Nacho Doce

Jury member actor Donald Sutherland arrives at the Grand Hyatt Cannes Hotel Martinez on the eve of the opening of the 69th Cannes Film Festival in Cannes, France, May 10, 2016.

Photo by Jean-Paul Pelissier

Director Woody Allen (2ndL) and cast members (L-R) Blake Lively, Kristen Stewart and Jesse Eisenberg pose on the red carpet as they arrive for the opening ceremony and the screening of the film «Cafe Society» out of competition during the 69th Cannes Film Festival in Cannes, France, May 11, 2016. Photo by Yves Herman

Iceland’s Greta Salome rehearses the song ”Hear Them Calling” during the jury show at the Ericsson Globe Arena in Stockholm, Sweden May 9, 2016. Photo by Maja Suslin/via

The Arizona-Mexico border fence is seen near Naco, Arizona,U.S.. Reuters Archive. Photo by Samantha Sais

U.S. Carnival cruise ship Adonia arrives at the Havana bay, the first cruise liner to sail between the United States and Cuba since Cuba’s 1959 revolution, Cuba, May 2, 2016.

Photo by Alexandre Meneghini

A wildlife ranger strokes a northern white rhino, only three of its kind left in the world, ahead of the Giants Club Summit of African leaders and others on tackling poaching of elephants and rhinos, Ol Pejeta conservancy near the town of Nanyuki, Laikipia County, Kenya, April 28, 2016.

Photo by Siegfried Modola

Los Angeles Lakers forward Kobe Bryant (24) waves to the crowd as he walks on the court before a game against the Utah Jazz at Staples Center. Bryant concludes his 20-year NBA career. Reuters Archive. Photo by Robert Hanashiro-USA TODAY Sports

Restoration workers look for cracks in the head of the ‘Christ the Redeemer’ statue high above Corcovado mountain in Rio de Janeiro, Brazil. Reuters Archive. Photo by Gregg Newton

A crawler crane destroys counterfeit Le Corbusier furniture in Vernier near Geneva, Switzerland. Reuters Archive.

Photo by Denis Balibouse

Sewage-fouled runoff from the Tijuana River has prompted authorities to issue an ocean-pollution warning for several miles of the shoreline just north of the U.S. – Mexico border near San Ysidro, California. March 31, 2016.

Photo by Mike Blake

The sun sets behind the World Trade Center building in Mexico City. Reuters Archive.

Photo by Edgard Garrido