Quest for Clues to Humanity's First Fires
How and when our ancestors mastered flames remains a hotly debated question. Researchers are hunting for answers buried in ancient ash and baked soils
Stories by Amber Dance
Live Fast, Die Young
Research into aging requires patience, but a small cadre of scientists is angling to speed up answers by developing the flamboyant, short-lived turquoise killifish as a new mode
A Massive Global Effort Maps How the Brain Is Wired
With innovative tools, connectome scientists are tracing the superhighways and footpaths of the brain
NASA Scientists Fight Budget Cuts with "Bake Sale"
The sale is a protest of plans in President Obama's 2013 budget request to cut 21 percent from NASA's planetary science budget, and 38 percent from its Mars projects
Notion in Motion: Wireless Sensors Monitor Brain Waves on the Fly
Electroencephalography used to require a person to sit still while a computer tracked the brain's electrical impulses. A newer technology untethers this research
Slide Show: 7 Artificial Valves That Lend Hearts a Helping Hand
For the past five decades, artificial heart-valve designs have evolved to successfully replace natural valves, which often begin to leak or harden over time
