Taking care of the nation's treasures requires art, history and even molecular science
After deliberating for nine days, the captains choose the tortuous southwest branch of the Missouri toward the Great Falls
The air in many national wilderness wonderlands is getting worse. As officials debate new rules to curb pollution, scientists find sources are far-flung
The tropics are home to the world's most venomous creatures-jellyfish with 4 brains, 24 eyes and stingers that can kill you in a minute flat
His discoveries in 1905 would forever change our understanding of the universe. Amid the centennial hoopla, the trick is to separate the man from the math
Fireflies' come-hither signals are being decoded by penlight-wielding biologists who've found treachery, also, in the summer-night flashes
A woodpecker feared extinct reappears in Arkansas
Sally Mann's unflinching photographs of her children have provoked controversy, but one of her now-grown daughters wonders what all the fuss was about
Zana Briski and collaborator Ross Kauffman's Academy Award winning documentary chronicals the resilience of children in a Calcutta red-light district
The fin de sià¨cle artist who captured Paris' cabarets and dance halls is drawing crowds to a new exhibition at Washington, D.C.'s National Gallery of Art
The eruption of Mount St. Helens 25 years ago this month was no surprise. But the speedy return of wildlife to the area is astonishing
How a dark tale of love, madness and murder in 18th-century London became a story for the ages
For some stories, the roots go way back, even to childhood
After a canoe capsizes, the first sight of the mountainous "snowey barrier" lifts the corps' spirits
Why did humans first turn from nomadic wandering to villages and togetherness? The answer may lie in a 9,500-year-old settlement in central Turkey
Buoyed by his reelection but dismayed by rulings of the justices who stopped his New Deal programs, a president overreaches
The Institution decides to focus on four basic questions
Raging in mines from Pennsylvania to China, coal fires threaten towns, poison air and water, and add to global warming
It's hard enough to identify fossilized microbes on Earth. How would we ever recognize them on Mars?
Twenty-five years ago this month, smallpox was officially eradicated. For the Indians of the high plains, it came a century and a half too late
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