Listen to Jochen Weiss of the University of Hohenheim speak about using nanotechnology to add omega-3 fatty acids to a variety of foods. Read more about fortifying foods.
Global food supply tops the agenda of many scientists. A piece of prehistoric wisdom of ancient farming combined with modern science could be a big help.
There's no practical limit on how far away we can see - if we're looking at objects brighter than their backgrounds. Read more about how far can a human see.
A gene protects grains (wheat, rice, corn, barley) from disease. Our species owes its survival in part to the stoutness of the disease-resistant gene in grains.
As Earth's climate warms, surface waters remain warm for longer and lengthen the "cholera season" for countries like Bangladesh. Marine microbiologist Rita Colwell describes a cholera early warning system that could help combat outbreaks.