
100 Trillion Connections: New Efforts Probe and Map the Brain's Detailed Architecture
The noise of billions of brain cells trying to communicate with one another may hold a crucial clue to understanding consciousness

You are currently logged out. Please sign in to download the issue PDF.

100 Trillion Connections: New Efforts Probe and Map the Brain's Detailed Architecture
The noise of billions of brain cells trying to communicate with one another may hold a crucial clue to understanding consciousness

Seeds of the Amazon
Botanists have collected seeds from one of the most biologically diverse places on Earth

Casualties of Climate Change: Sea-level Rises Could Displace Tens of Millions
Shifts in rainfall patterns and shorelines will contribute to mass migrations on a scale never before seen

Contact: The Day After
If 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

In Search of the Radical Solution: A Q&A with Venture Capitalist Vinod Khosla on New Energy Technology
The greatest energy payoffs, says investor Vinod Khosla, will come from fundamentally reinventing mainstream technologies

Flu Factories
The next pandemic virus may be circulating on U.S. pig farms, but health officials are struggling to see past the front gate

Radioactive Smoke: A Dangerous Isotope Lurks in Cigarettes
The 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

Rise of the Robo Scientists
Machines can devise a hypothesis, carry out experiments to test it, and assess results--without human intervention

Dawn of the Deed: The Origin of Sex
Fish fossils push back the origin of copulation in backboned animals and suggest that it was a key turning point in our evolution