A congressional hearing this week focused on sources and methods of foreign spies in the U.S., but the engineering expert didn?t testify about counter-espionage technologies.

With the start of football season, you?re sure to hear a lot about cartilage injuries. An innovative use of stem cells might one day let players?and you?avoid the knife.

While most people are blaming Mother Nature for the crisis in New Orleans, others are saying we trampled upon her helping hand.

We've all heard the saying "the walls have ears." Recent engineering advances may actually allow tomorrow's walls to sense things and even communicate.

Could sharks be used to attack antibiotic-resistant bacteria, or even cancer?

Scientists know a lot about the biology of brain cells. But how they work together to create your thoughts is a mystery.

As the space shuttle Discovery returns to Earth, attention will be focused on very high-tech materials with low-tech names: tiles and gap fillers.

Listen up kids! Math is powerful. It might even show us how to stop hurricanes.

Weather researchers have just completed a six-month experiment of a new tool that could dramatically improve forecasts.

Even the most routine medical check on a zoo animal can be a major procedure. So some veterinarians are trying a new tool.