Joshua Lederberg, 82, a Nobel Winner, Dies
Dr. Lederberg was one of the 20th century’s leading scientists, whose work in bacterial genetics had vast medical implications and led to his receiving a Nobel Prize. nytimes.com
Pentagon: Satellite Strike A Bull's-Eye
The Pentagon is claiming success in shooting down a dead U.S. spy satellite over the Pacific. Officials say they have a "high degree of confidence" that the missile fired at the satellite last week destroyed the satellite's fuel tank as planned. feeds.cbsnews.com
Toward Cheaper, Robust Solar Cells
Prachi Patel-Predd, Technology Review: Researchers are working on solar cells that use a novel organic dye. nanoforum.org
For Carbon Emissions, a Goal of Less Than Zero
At laboratories in the United States and abroad, the search is on to develop fuels from sources that remove more greenhouse gas than they produce. nytimes.com
Presidential Candidates on Marijuana
For patients and doctors who want to use medical marijuana for pain relief, there’s more good news from researchers — and maybe signs of change in Washington. tierneylab.blogs.nytimes.com