A laser powerful enough to tear apart the fabric of space could be built in Britain. The major scientific project will follow in the footsteps of the Large Hadron Collider and will answer questions about the universe. The laser will be capable of producing a beam of light so intense that it will be similar to the light the earth receives from the sun but focused on a speck smaller than a pin prick. Scientists say it will be so powerful they will be able to boil the very fabric of space and create a vacuum. A vacuum fizzles with...