MRI can identify a lie with 90% accuracy

Researchers are using functional MRI to watch localized brain activity to look inside heads and see what your brain does when it tells a lie.

Geoffrey Coates creates greener plastics

Geoffrey Coates has created a range of new plastics from renewable resources, which are almost indistinguishable from many of today's plastics.

Jeanne Becker: ‘Experiments may lead to vaccine’

Jeanne Becker said experiments aboard the International Space Station could lead to vaccines to prevent deadly bacterial infections here on Earth.

Jose Bravo predicts lighter cars, diverse fuels

Jose Bravo speaks of trends in fuels and mobility. He envisions significant changes in engine efficiency and the amount of fuels that cars will require.

Kent Hunter explains why cancer is so hard to cure

Kent Hunter said cancer involves our cells losing their ability to control their own growth. And he said the body has a hard time distinguishing cancerous cells from normal cells, so that drug design for cancer is difficult.

Pamela Martin on environmental impact of the American meat diet

Pamela Martin studies examine how much land a meat-based diet versus a vegetable-based diet would require to support Americans.

Ambuj Sagar: ‘Energy demand in India to double by 2030’

India is expected to double its energy demand by the year 2030, according to Ambuj Sagar - an energy policy advisor to 27 member countries.

But we still have to eat even with climate change

Climate change is being caused by an excess of certain kinds of gases in Earth's atmosphere. Some of these gases come from cows.

Paula Schnurr: ‘15% of Iraq soldiers may have PTSD’

Paula Schnurr says war veterans have always suffered post-traumatic stress disorder (PTSD), and how to help veterans process their experiences to ease symptoms.

Susan Goldin-Meadow thinks gestures help children learn

Susan Goldin-Meadow research shows that children have bigger vocabularies when they're raised by parents who actively gesture.