Does a universe of dark matter exist alongside ours, but hidden from view? This digital feature is a rich-media presentation of the article, "Dark Worlds," which appears in the November 2010 issue. Find all our other interactive offerings here.
November 4, 2010 | 26
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 30 2013
Reward: $100,000 USD
The Seeker desires a method for producing pseudoephedrine products in such a way that it will be extremely difficult for clandestine che
Save 66% off the cover price and get a free gift!
Learn More >>X