The Engineer (April 6) -- Researchers at the University of Illinois at Urbana-Champaign and Washington University in St. Louis have developed the tiny surgical camera, which connects a surgeon’s goggles and detects infrared signals given off by tumour-binding dyes. This lets the surgeon find and remove all of the cancerous tissue. The study was published in the journal Optica. Also: Geek.com (April 7), Zenopa (April 9), Cosmos (April 9)