• The man who grew eyes

    Growing nerve tissue and organs is a sci-fi dream. Moheb Costandi met the pioneering researcher who grew eyes and brain cells.

  • Smart and smarter drugs

    Are we asking the right questions about smart drugs? Marek Kohn looks at what they can do for us – and what they can’t.

  • Coming up on Mosaic

    Ian Birrell reports on South Africa's obesity crisis and Emma Young explores attempts to make children more resilient to traumatic experiences.