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Materials Science

Vision Quest

Increasing numbers of people with less-than-perfect vision can now wear contact lenses, thanks to innovations in lens design and materials.

Animals

Bees log flight distances, train with maps

After decades of work, scientists crack two problems of how bees navigate: reading bee odometers and mapping training flights.

Earth

DDT treatment turns male fish into mothers

Injecting into fish eggs an estrogen-mimicking form of the pesticide DDT transforms genetically male medaka fish into apparent females able to lay eggs that produce young.

Chemistry

Tums of the Sea

Ocean scientists question whether the seas can handle rising carbon dioxide concentrations.