We're used to lasers being either death beams, or harmless little points of light. But we also use lasers to cool matter to absolute zero and probe the limits of physics.

An absurd conspiracy embraced by a GOP congresswoman would be funny if she wasn't serious and if people knew more about how lasers and space solar really work.

A new experiment unlocks quantum behaviors that can make laser beams more cohesive and negotiate more complicated trajectories.