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Paleoanthropologists know more about Neandertals than any other extinct human. But their demise remains a mystery, one that gets curiouser and curiouser
The possibility of "swimming" and "gliding" in curved, empty space shows that even after nine decades, Einstein's theory of general relativity continues to amaze
Study of a potentially fatal food-triggered disease has uncovered a process that may contribute to many autoimmune disorders
Yucca Mountain was supposed to be the answer to the U.S.'s nuclear waste problem, but after 22 years and $9 billion, that vision is dead. Now, some say that doing nothing in the near term may be the smartest solution
The discovery that compounds known as iron pnictides can superconduct at 50 degrees above absolute zero has reignited physicists' quest for better high-temperature superconductors, and may offer clues to unlocking a 20-year mystery
An emerging class of medicines works its magic by targeting unusual sites on biological molecules
Slide Show
Top 10 New Species Discovered in 2008
From the smallest sea horse to a naturally decaffeinated coffee tree, newly discovered species show that Earth still has plenty of surprises.
60-Second Solar Blog
What You Really Need to Install Solar Panels: A CPA
If the paperwork-heavy experience of one Scientific American editor is anything to go by, a solar boom will create plenty of jobs—in accounting.
Fact or Fiction?
Should We Drink Eight Glasses of Water a Day?
A popular belief holds that healthy people need liquids, even when they are not thirsty.
Slide Show
The World’s 10 Largest Renewable Energy Projects
From wind and wave to sun and trash, existing power plants are generating electricity from renewable sources on a massive scale.
60-Second Earth Podcast
Is Organic Really Better?
Does consuming organic food truly benefit both eater and environment?
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The Seeker for this Challenge desires proposals for chemical methods that could rapidly degrade a dilute aqueous solution
Deadline: Jul 15 2013
Reward: $5,000 USD
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