About the size of "Abraham Lincoln's head on a penny," the device could travel through your body to deliver drugs and take samples.
Conceptual shelters that will protect us all from the perils of our rapidly changing environment: rising waters, extreme heat, rampant pollution and overpopulation
Nuclear energy is looking like it will be a big part of a fossil-fuel-free future in the U.S. But the big question remains as big as ever: What's to be done with the waste it generates?
Inducing therapeutic hypothermia can prevent damage from oxygen deprivation in trauma patients
"Thermopower waves" could be a brand-new way to produce electricity
In search of the perfect combustible fuel
Subtle movements create current
How new medical tech gets injured stars off the disabled list and onto the field
To rescue the Earth, we need bold engineering ideas that go beyond simple recycling
If cord-free power delivers on its promise, our "wireless" world will finally live up to the name
U.S. forces in Iraq are waging a pivotal campaign in modern warfare-combat on the first "networked" battlefield. One problem: the enemy has a few networks of its own
Why just rebuild the Crescent City when we can reinvent it? Here, the complete plan for riding out a category-5 storm
We've seen the future, and it is wonderfully weird here's 24 photos to prove it
The man behind the world's most powerful camera confronts killer viruses, nude sunbathers and the San Diego Padres
In the escalating arms race between battery power and consumption, The Cells are losing to The Gadgetsâ€”Big time. Question is, can the chemists catch up to the engineers?
Way bigger budget, way bigger needs--controlling weapons and sensors while flying a fighter plane in combat--result in way better head-up display.
A kinetic missile that flies at mach 7
Physics can't find the biggest thing in the known universe, so it's looking beyond our paltry three dimensions. Michael Moyer enters the zone of insanely hard mathematics, translates what he finds into plain English, and makes it back alive.
What takes place inside a fuel cell is electrolysis in reverse
The U.S. Forest Service eyes a new remote-sensing system to detect early flames.
A peek at our nonlethal arsenal
3 radical ideas, but any real science? We ask the experts.
Energy: Some say it's too big a job, but scientists would sure like to try.