Massive solar storm heading for Earth
Solar storms: a Nasa image shows a massive eruption on the surface of the Sun. Photograph: Anonymous/AP
Despite the conspiracy theory and the movie, the end of the Mayan calendar system in 2012 does not spell apocalypse for humanity. But there are risks to our continued existence on Earth. Here's what to look out for.
Physicists operating the Large Hadron Collider at the CERN laboratory near Geneva may have to rethink their claim that particles can travel faster than the speed of light after a source suggested that a bad connection affected the measurements.