The Minister for Science, Edwina Hart will officially open a £30 million cancer and mental health research facility at Cardiff University today.
The Hadyn Ellis building will play host to Cardiff's leading scientists and house the latest equipment in the research of cancer.
The building will also facilitate Public Health Wales, allowing health professionals and academics to work alongside each other.
The facility has been named after former Professor Hadyn Ellis, who published leading research into the psychology of face recognition.
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Feeling humid with heavy showers and thunderstorms moving north overnight into Sunday.
Four people, including three children, were taken to hospital to be checked for smoke inhalation.
Heavy rain and thunderstorms will affect many parts of Wales this weekend - particularly during Saturday evening.