In 1908, photographer Lewis Hine traveled across the U.S. to document child laborers and their workplaces. His portraits were used by reformers to drive legislation that would protect young workers or prohibit their employment.
Wildfires have already burned more than 1.6 million acres in Alaska this season, and blazes in Washington, Oregon, and bone-dry California have scorched thousands more.
The health of the largest living ecosystem on Earth is in danger, and UNESCO World Heritage delegates will announce on Wednesday whether they will place the Great Barrier Reef on a list of endangered World Heritage sites.
Surfers waiting for a wave at sunset in Chile, the San Juan festival in Spain, erupting volcanoes in Indonesia and Chile, an anti-U.S. rally in North Korea, a gorgeous sunset over Boston’s Fenway Park, celebrations of same-sex marriage supporters in Washington, D.C., and much more.
A quick visual tour of our neighbors in the solar system, with recent images from Mars, Pluto, Saturn, Ceres, Earth, and several other bodies.
Work on the massive $5 billion Panama Canal Expansion is nearly complete.
The massive Antarctic Snow Cruiser was designed and built for Antarctic exploration in 1939, but failed to live up to expectations.
Two hundred years ago, the decisive Battle of Waterloo was fought near Brussels, commemorated over the weekend by thousands of reenactors staging battles in period uniforms.
A double rainbow over the Sydney Harbour Bridge, swimming in the Mediterranean, refugees in Syria and Europe, volcanic eruptions in North Sumatra, sorrow in Charleston, and much more.
Azerbaijan is hosting the first-ever European Games in its capital city of Baku.
Spectacular wildlife photography: Winners and runners-up from the 2015 Audubon Photography Awards competition.
Thousands of Syrians cut through a border fence and crossed into Turkey on Sunday, fleeing intense fighting in northern Syria between Kurdish fighters and ISIS militants.
Heavy rainfall and flooding in the Georgian capital of Tbilisi left at least 12 people dead on Sunday, ravaging the city's zoo and setting animals free into the streets of Tbilisi.
After viewing news photographs from China for years, one of my favorite visual themes is "large crowds in formation."
The editors of Smithsonian magazine have announced the winners of their 12th annual photo contest, selected from more than 26,500 entries.