India's Rocketing Space Ambition

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How India's record-breaking launch of 104 satellites in a single mission shows its ambition to be a world power in the space business. Plus, we keep being told to change our passwords regularly and choose ever more complex ones. But could there be a better way to stay safe online? Dr Shujun Li from the University of Surrey thinks he has an answer. Presented by Rory Cellan-Jones, with Zoe Kleinman from the BBC Online tech desk, and special guest Michelle Kennedy, co-founder of the Peanut social app for new parents. (Image: The PSLV-C37 rocket lifting off at the Satish Dhawan Space Centre in Sriharikota, India, this week. Credit: EPA/ ISRO).