Wales' Chief Scientific Adviser, Professor John Harries, says the £50-million investment should help build a team of top-level scientists and attract the best research projects to Wales.
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The four candidates who want to lead the Labour party have visited Cardiff trying to persuade party members for support.
Australia's first female PM Julia Gillard has told ITV News Wales about sexist barriers in politics and her affinity to her native Wales.
Many eastern areas will see a fine morning with spells of sunshine, but showers will spread from the west by the afternoon.