The earthquake and tsunami that hit Japan on March 11, 2011, lasted for many terrifying minutes. But the multiple nuclear meltdowns that followed created an emergency that lasted for weeks and a legacy that will last for decades.
Here's how the event unfolded. The tsunami knocked out power to the Fukushima Dai-ichi nuclear power plant. As a result, the cooling systems failed and three reactors melted down. Steam laced with radioactive material poured into the air. Water contaminated with radiation also flowed into the sea.
Persistent pressure and criticism have prompted the Church of Jesus Christ of Latter-day Saints to erect a new "technological barrier" in the system used for controversial posthumous or proxy baptisms.
In the last few years, more than 4,000 refugees have found their way to a far-flung spot: Idaho. Most of the state's incoming refugees come to Boise. For years, the city's strong economy, good-quality affordable housing and supportive community created an especially favorable environment for refugee resettlement. The recession has shifted that picture.
Invisible Children, the group that released the Joseph Kony video that went viral this week, has been making films about Kony for years and targeting young people as the main audience. Here, the group's co-founders, Jason Russell (left), Bobby Bailey (center) and Laren Poole, record footage in Africa in 2007.
Students at Tohoku Chosen, an elementary and junior high school for North Koreans in Sendai City, now take dance classes in the school's cafeteria because their main building was destroyed when the earthquake struck northeast Japan last March.
Students draw during art class at Imagine Japan, an English-language school in Sendai City, Japan. Immediately following last year's earthquake and tsunami in northeast Japan, a teacher observed some of the kids drawing faces and bodies with black markers.
Teacher Dave Rowlands is talking to his students in a kindergarten class at Imagine Japan, an English-language school in the Miyagi Prefecture of Sendai City. The school is just a short walk from pre-fabricated homes built for families who lost more than just property in the earthquake and tsunami last year.
"What came after the earthquake, was what?" Rowlands asks. "A tidal wave. In Japanese, what do we say? Or in English, actually, tsunami is now used around the world in many languages. Tsunami. We kind of leave the 't' off of there."
Rhino poaching has been on the rise in the past few years. In South Africa and other regions where rhinos run, poachers have been killing or darting rhinos with tranquilizers for their horns.
Rather than adorning walls, many horns are ground up into medicines, sold mostly in Southeast Asia. A possible — yet controversial — way to stop poaching may be rhino ranches, where the horns are harvested for sale and the animals are allowed to grow new ones.