A Yardstick for the Universe

The Hubble Space Telescope is helping to improve our understanding of the expansion of space, dark energy, and the fate of the cosmos. 11.10.2009

Brain-Like Chip May Solve Computers' Big Problem: Energy

The future of computing may depend on embracing the chaos that defines human thinking. 11.06.2009

Darwin's Great Blunder—and Why It Was Good for the World

The best thing we can do for the theory of evolution may be to bring its creator back down to earth. 10.27.2009

The Man Who Discovered What Killed the Dinosaurs

Geologist Walter Alvarez describes how rocks tell the story of Earth's history. 10.26.2009