June 1, 2012
From Afghanistan: May 2012, one of 42 photos. Dust lights up the rotors of a CH-47 Chinook helicopter as paratroopers with 3rd Squadron, 73rd Cavalry Regiment load for an air assault mission near Combat Outpost Ab Band in Ghazni province, Afghanistan, on May 23, 2012. Small sand particles striking titanium/nickel abrasion strips on the rotors causes a visible corona at night. In 2009, photographer Michael Yon dubbed this phenomenon the “Kopp-Etchells effect”, to honor Cpl. Benjamin Kopp, and Cpl. Joseph Etchells, recently fallen American and British soldiers. (U.S. Army/Sgt. Mike MacLeod)

From Afghanistan: May 2012, one of 42 photos. Dust lights up the rotors of a CH-47 Chinook helicopter as paratroopers with 3rd Squadron, 73rd Cavalry Regiment load for an air assault mission near Combat Outpost Ab Band in Ghazni province, Afghanistan, on May 23, 2012. Small sand particles striking titanium/nickel abrasion strips on the rotors causes a visible corona at night. In 2009, photographer Michael Yon dubbed this phenomenon the “Kopp-Etchells effect”, to honor Cpl. Benjamin Kopp, and Cpl. Joseph Etchells, recently fallen American and British soldiers. (U.S. Army/Sgt. Mike MacLeod)

May 31, 2012
From The Unreal World, one of 38 photos. Here, a woman pretends to wait for a drop of water while standing under Simon McGrath’s giant sculpture “Who Left The Tap On” at the Sculptures by the Sea exhibition in Sydney, Australia, on November 3, 2011. Sculptures by the Sea is the largest free-to-public outdoor sculpture exhibition, featuring over 100 sculptures by artists from Australia and across the world. (AP Photo/Rob Griffith)

From The Unreal World, one of 38 photos. Here, a woman pretends to wait for a drop of water while standing under Simon McGrath’s giant sculpture “Who Left The Tap On” at the Sculptures by the Sea exhibition in Sydney, Australia, on November 3, 2011. Sculptures by the Sea is the largest free-to-public outdoor sculpture exhibition, featuring over 100 sculptures by artists from Australia and across the world. (AP Photo/Rob Griffith)

May 30, 2012
From Olympic Portraits, Part I: American Athletes, one of 23 photos in a two-part series. Track athlete Bernard Lagat poses for a portrait during the 2012 Team USA Media Summit in Dallas, Texas, on May 14, 2012. (Ronald Martinez/Getty Images)

From Olympic Portraits, Part I: American Athletes, one of 23 photos in a two-part series. Track athlete Bernard Lagat poses for a portrait during the 2012 Team USA Media Summit in Dallas, Texas, on May 14, 2012. (Ronald Martinez/Getty Images)

May 29, 2012
From The Golden Gate Bridge Turns 75, one of 41 photos. High-power lights illuminate the Golden Gate Bridge as part of the span’s 75th anniversary celebration in San Francisco, on May 27, 2012. (AP Photo/Noah Berger)

From The Golden Gate Bridge Turns 75, one of 41 photos. High-power lights illuminate the Golden Gate Bridge as part of the span’s 75th anniversary celebration in San Francisco, on May 27, 2012. (AP Photo/Noah Berger)

May 25, 2012
From Where in the World? Part 3: A Google Earth Puzzle, one of 18 photos. Can you identify where in the world this image was taken? Click through to the full entry to take a multiple choice quiz

From Where in the World? Part 3: A Google Earth Puzzle, one of 18 photos. Can you identify where in the world this image was taken? Click through to the full entry to take a multiple choice quiz

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Filed under: quiz geography photography 
May 24, 2012
From The American West, 150 Years Ago, one of 34 photos. A man sits in a wooden boat with a mast on the edge of the Colorado River in the Black Canyon, Mojave County, Arizona. At this time, photographer Timothy O’Sullivan was working as a military photographer, for Lt. George Montague Wheeler’s U.S. Geographical Surveys West of the One Hundredth Meridian. Photo taken in 1871, from expedition camp 8, looking upstream. (Timothy O’Sullivan/LOC)

From The American West, 150 Years Ago, one of 34 photos. A man sits in a wooden boat with a mast on the edge of the Colorado River in the Black Canyon, Mojave County, Arizona. At this time, photographer Timothy O’Sullivan was working as a military photographer, for Lt. George Montague Wheeler’s U.S. Geographical Surveys West of the One Hundredth Meridian. Photo taken in 1871, from expedition camp 8, looking upstream. (Timothy O’Sullivan/LOC)

May 23, 2012
From One Year Since the Joplin Tornado, one of 32 photos. A tall steel cross is refracted in raindrops on a window in Joplin, Missouri, on May 7, 2012. The cross is all that was left standing of St. Mary’s Catholic Church, which was destroyed by an EF-5 tornado that tore through a large swath of the city and killed 161 people nearly a year ago. (AP Photo/Charlie Riedel)

From One Year Since the Joplin Tornado, one of 32 photos. A tall steel cross is refracted in raindrops on a window in Joplin, Missouri, on May 7, 2012. The cross is all that was left standing of St. Mary’s Catholic Church, which was destroyed by an EF-5 tornado that tore through a large swath of the city and killed 161 people nearly a year ago. (AP Photo/Charlie Riedel)

May 22, 2012
From Earthquake in Northern Italy, one of 30 photos. Half of a clock face on Modenesi’s Towers of Finale Emilia, destroyed following an earthquake on May 20, 2012 in Ferrara, Italy. (Roberto Serra/Iguana Press/Getty Images)

From Earthquake in Northern Italy, one of 30 photos. Half of a clock face on Modenesi’s Towers of Finale Emilia, destroyed following an earthquake on May 20, 2012 in Ferrara, Italy. (Roberto Serra/Iguana Press/Getty Images)

May 21, 2012
From A Ring of Fire: The 2012 Annular Eclipse, one of 26 photos. The Moon partially eclipses the Sun, as seen from Venice, California, on May 20, 2012. (CC BY SA Ian Norman)

From A Ring of Fire: The 2012 Annular Eclipse, one of 26 photos. The Moon partially eclipses the Sun, as seen from Venice, California, on May 20, 2012. (CC BY SA Ian Norman)

May 18, 2012
From Scenes From Brazil, one of 45 photos. Sugarloaf mountain and Guanabara Bay, at dawn in Rio de Janeiro, Brazil, on August 5, 2011. (AP Photo/Felipe Dana)

From Scenes From Brazil, one of 45 photos. Sugarloaf mountain and Guanabara Bay, at dawn in Rio de Janeiro, Brazil, on August 5, 2011. (AP Photo/Felipe Dana)

May 17, 2012
From Mexico’s Drug War: 50,000 Dead in 6 Years, one of 44 photos. Here, a masked Mexican soldier patrols the streets of Veracruz, on October 10, 2011. Soldiers of the Army, Navy and members of Federal Police patrol the streets of the city as part of “Veracruz Safe Operation” after a rising tide of violence plaguing this tourist city. (Yuri Cortez/AFP/Getty Images)

From Mexico’s Drug War: 50,000 Dead in 6 Years, one of 44 photos. Here, a masked Mexican soldier patrols the streets of Veracruz, on October 10, 2011. Soldiers of the Army, Navy and members of Federal Police patrol the streets of the city as part of “Veracruz Safe Operation” after a rising tide of violence plaguing this tourist city. (Yuri Cortez/AFP/Getty Images)

May 16, 2012
From Views From the Night Sky: London and the U.K., one of 30 photos. Here, a night aerial view over Swiss Re Tower, and the Lloyds Building, City of London. (© Jason Hawkes)

From Views From the Night Sky: London and the U.K., one of 30 photos. Here, a night aerial view over Swiss Re Tower, and the Lloyds Building, City of London. (© Jason Hawkes)

May 15, 2012
From Star City and the Baikonur Cosmodrome, one of 44 photos. A composite of a series of images photographed from the ISS, released on March 16, 2012. A total of 18 images photographed by the astronaut-monitored stationary camera were combined to create this composite. (NASA/Don Pettit)

From Star City and the Baikonur Cosmodrome, one of 44 photos. A composite of a series of images photographed from the ISS, released on March 16, 2012. A total of 18 images photographed by the astronaut-monitored stationary camera were combined to create this composite. (NASA/Don Pettit)

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Filed under: iss space nasa photography 
May 15, 2012
From Star City and the Baikonur Cosmodrome, one of 44 photos. The Russian Soyuz TMA-19 spaceship that will carry a crew to the international space station sits on the launch pad at the Russian-leased Baikonur Cosmodrome in Baikonur, Kazakhstan, on June 13, 2010. (AP Photo/Sergey Ponomarev)

From Star City and the Baikonur Cosmodrome, one of 44 photos. The Russian Soyuz TMA-19 spaceship that will carry a crew to the international space station sits on the launch pad at the Russian-leased Baikonur Cosmodrome in Baikonur, Kazakhstan, on June 13, 2010. (AP Photo/Sergey Ponomarev)

May 14, 2012
From 50 Years Ago: The World in 1962, one of 50 photos. Aerial view of the Space Needle and surrounding area in Seattle in 1962. The Century 21 Exposition, also called the Seattle World’s Fair, was held from April 21, 1962, to October 21, 1962. This year, to celebrate the 50th anniversary, the iconic Space Needle was once again painted in its original “Galaxy Gold”. (AP Photo)

From 50 Years Ago: The World in 1962, one of 50 photos. Aerial view of the Space Needle and surrounding area in Seattle in 1962. The Century 21 Exposition, also called the Seattle World’s Fair, was held from April 21, 1962, to October 21, 1962. This year, to celebrate the 50th anniversary, the iconic Space Needle was once again painted in its original “Galaxy Gold”. (AP Photo)