PhysicsThe wonder particle: How axions could solve more than just dark matter Physicists are coming to realise that hypothetical particles called axions could explain not only dark matter, but dark energy too, and more besides. Now there is fresh impetus to detect them Features
PhysicsStrange upward lightning shoots out X-rays as it rises to the clouds Tall buildings made from electrically conductive materials can send lightning bolts up into the heavens during a thunderstorm, and they generate X-rays at the same time News