PhysicsBall lightning is so strange it might just come from another dimension Mysterious floating orbs of light have puzzled scientists for centuries, inspiring no end of creative explanations. A new idea suggests they aren't entirely of this world Features
Science with Sam: What is a black hole? And could you survive one? Ever wondered what a black hole is made of, or what would happen if you fell into one? Science with Sam, a new video series from ¿ìè¶ÌÊÓÆµ, explains… Video