Rise of the Robo ScientistsMachines can devise a hypothesis, carry out experiments to test it, and assess results--without human intervention
In Search of the Radical Solution: A Q&A with Venture Capitalist Vinod Khosla on New Energy TechnologyThe greatest energy payoffs, says investor Vinod Khosla, will come from fundamentally reinventing mainstream technologies
Seeds of the AmazonBotanists have collected seeds from one of the most biologically diverse places on Earth
Casualties of Climate Change: Sea-level Rises Could Displace Tens of MillionsShifts in rainfall patterns and shorelines will contribute to mass migrations on a scale never before seen
Radioactive Smoke: A Dangerous Isotope Lurks in CigarettesThe tobacco industry has known for decades how to remove a dangerous isotope from cigarettes but has done nothing about it. The government now has the power to force a change
Contact: The Day AfterIf we are ever going to pick up a signal from E.T., it is going to happen soon, astronomers say. And we already have a good idea how events will play out
100 Trillion Connections: New Efforts Probe and Map the Brain's Detailed ArchitectureThe noise of billions of brain cells trying to communicate with one another may hold a crucial clue to understanding consciousness
Flu FactoriesThe next pandemic virus may be circulating on U.S. pig farms, but health officials are struggling to see past the front gate
Dawn of the Deed: The Origin of SexFish fossils push back the origin of copulation in backboned animals and suggest that it was a key turning point in our evolution
What is it?
The Science of Sous Vide
Do Giraffes Float?
Animal Instincts: Are Creatures Better Than Us at Computation?
For Whom the Nobel Tolls: An Evening Out with James Watson
Why Sleep Is Good for You
Practically Green: A Q&A with the Chevy Volt's Chief Engineer
How Old Is Your Cancer?
New Subatomic Particle Could Help Explain the Mystery of Dark Matter
Donate Your Brain, Save a Buck
Microbubbles Used to Breach the Blood-Brain Barrier
The Bright Spots of Kids' TV
Diplomacy's Meltdown: Developing Countries Are Not Holding Back Climate Agreements
From the Editor
Casting a Wide Net
Money for Science: U.S. Funding over the Years
Letters to the Editors
Readers Respond to "The End" and Other Articles
Recommended: Radioactive: Marie & Pierre Curie, a Tale of Love and Fallout
The Science of Right and Wrong
Don't Worry about Who's Watching
The Science of Health
Curing the Common Cold