New analyses suggest that recent human evolution has followed a different course than biologists would have expected
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The ultimate fuel may come not from corn or algae but directly from the sun itself
Physicists have long sought to find one final theory that would unify all of physics. Instead they may have to settle for several
NASA is building an innovative and risky space telescope that promises to surpass the hugely successful Hubble. Here's an exclusive, behind-the-scenes look at the most audacious space project in decades
The first step toward transparent government, says White House information czar Vivek Kundra, is to make all its information freely available on the Web
Diagnoses have soared, but valid treatments are few. Parents have turned instead to dubious, and often risky, alternative therapies
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Autonomous machines will soon play a big role in our lives. It's time they learned how to behave ethically
The Human Genome Project has failed so far to produce the medical miracles that scientists promised. Biologists are now divided over what, if anything, went wrong—and what needs to happen next
Interactive Features
New analyses suggest that recent human evolution has followed a different course than biologists would have expected
Technological, medical and epidemiological advances are allowing more women and children around the world to survive the risks of pregnancy and childbirth
Deadline: Jun 29 2013
Reward: $7,000 USD
The Seeker for this Challenge desires proposals for chemical methods that could rapidly degrade a dilute aqueous solution
Deadline: Jul 25 2013
Reward: Varies
This challenge provides an opportunity for Solvers to build a web-based or mobile “app” to explore data relationships in scholarly conte
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