Hollywood actress Angelina Jolie's revealed she chose to undergo a double mastectomy to reduce her risk of breast cancer.
She made the decision after testing positive for a genetic defect that made it more likely she'd get breast or ovarian cancer.
Also making headlines this week is Canadian astronaut Commander Chris Hadfield, who has become the most famous space traveller in years thanks to his use of social media and the first music video shot in space, a rendition of David Bowie's 'Space Oddity'.
Auckland University senior lecturer and nanotechnology expert Michelle Dickinson appeared on Firstline this morning – watch the video.
source: newshub archive
