• Micro Solar Cells Handle More Intense Sunlight
  Cells absorb sunlight concentrated 1,000 times without cooling.
• An Early Warning System for Cancer
  Autoantibodies could alert doctors to cancer development.
• Getting a Grip on Online Buzz
  Service tracks social network chitchat about a product.

• More Top Stories
  U.S. Solar Market to Double in the Next Year
  Government incentives and lower solar prices are starting to pay off.
• Searching for Disease Clues in Genetic Diversity
  Research on the Mexican genome could broaden the scope of personalized medicine.
• Finding a Parking Space Could Soon Get Easier
  Networking sensors attached to taxis could ease the hunt for street parking.

• Special Reports
• To Market
  Tracking innovative technologies appearing in commercial products.
• Scan and Listen
  
• What's Inside the iPad's Chip?
  Cost and power efficiency may have pushed Apple to create its own microchip.
• "Melting" Drywall Keeps Rooms Cool
  Developers think these phase-change materials could reduce the need for air-conditioning.
• Graphene Transistors that Can Work at Blistering Speeds
  IBM shows that graphene transistors could one day replace silicon.
• Brain Imaging Lets Vegetative Patient Communicate
  The surprising new research is likely to challenge our notions of consciousness.
• Budget Charts a New Course for NASA
  Moon and Mars missions are scrapped, but radical new technology gets funding.

• Biofuels from Saltwater Crops
  A research project will make jet fuel without wasting fresh water or farmland.
• From Hope to Reality in Personalized Medicine
  Francis Collins's book offers optimism but no grand plan.

• Briefing: Media
  January/February 2010
  We assess the technologies that are destroying old ways of doing business and look into what will be left when the dust settles.
• How Legal Wiretaps Could Let Hackers In
  Scheme gives law enforcement officials access, but flaws could make it useful for criminals as well.

• Obama Goes Nuclear
  Loan guarantees in the 2011 federal budget could help revive the nuclear power industry.
• Crafting Light-Sensing Cells from Human Skin
  Photoreceptors created from induced pluripotent stem cells.

• iPad Rattles the e-Bookshelves
  But Amazon's e-book dominance may be hard to change.
• New Test Screens Prospective Parents for 100-Plus Diseases
  Startup aims for routine preconception genetic testing.

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