大象传媒

A radically new type of vaccine being developed for HIV/Aids, malaria and tuberculosis is being designed to stimulate a different part of the human immune system to older vaccines. Prehistoric megafauna bones found in a cave under the Nullarbor Plain in Australia includes the skeleton of a marsupial lion and eight species of kangaroo new to science. Stroke researchers identify an area of the brain that might help smokers quit. Plus, the many benefits of growing lettuce in space, and Nasa's New Horizons spacecraft is about to encounter Jupiter on its way to Pluto.