Remember the heftily-priced Leica M8 digicams, which were recalled earlier owing to some glitches. Well, the company has now released a firmware update, which they claim to solve the problem of M8’s high sensitivity to infrared light....

Picture: A false-colour infrared map of Ceres shows bright regions in red and dark regions in blue. The circular blue feature near the centre may be an impact crater, while the nature of the reddish patches is unclear. Black patches at the poles...

A counter-measure to blind the tiny detectors inside the terrorists’ heat-seeking missiles that can detect infrared light given off by hot objects, using as guidance, has been invented. These missiles can easily detect the infrared light from...