Ellyn Ogden travels the world in an effort to eradicate the crippling disease
Curiosity pays off in America's oldest science contest
America’s 156-station network provides continent-wide picture of life in the sky
Study predicts that sea level will rise 32 centimeters by 2050
Information sheds new light on polluted air in US cities
More prey and fewer predators could throw the ecosystem out of balance
Even though it is NASA’s oldest and longest-serving shuttle, it remains an impressive workhorse
Launch winds down US space shuttle program
'Watson' is now working on assisting doctors and patients
Sticky, self-healing properties could have far-reaching medical and industrial applications
Aggressive, fast-growing vines are structural parasites
Obama calls on US automakers to produce more electric-powered alternatives
Buildings consume 40 percent of American energy
Amateur gardener nurtures a conservatory garden in 'Paradise Under Glass'
Documentary 'Sun Come Up' explores life in a warmer world
Tools and teeth found in Israel could be oldest ever discovered
Rediscovered lost species sound hopeful note
US automaker emerges from bankruptcy to win North American Car of the Year
Clues to a modern apocalypse found in ancient fossils
2011 offers both promise and challenge
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