June 1. 2012 – SPACE – After an unusually long quiet period, the Sun unleashed a solar flare on May 17 this year – but scientists are now puzzling over what happened on Earth. Neutron monitors all round the world lit up in response to the blast for the first time in six years, despite the fact it was an M-Class, or moderate, flare. The ‘answering’ pulse shouldn’t have happened at all. Now scientists are trying to unravel what happened – and why our planet ‘pulsed’ in response. James Ryan, an astrophysicist at the UNH Space Science Center said, ‘This solar flare was most unimpressive and the associated CME was only slightly more energetic. And looking at it optically, it was remarkably dim; it was, all things considered, a ninety-eight pound weakling of solar events.’