I saw a 20-second security camera clip on Facebook of ball lightning. It came out of the sky, rolled, and “walked” around a parking lot as if alive, then disappeared.

A new technique pioneered by scientists at the University of Maryland uses lasers to create a “little ball of lightning” than can help detect radiation at least up to 10 meters from the source.

Lego revealed its latest Disney building set for adult collectors in the form of Luxo Jr., a 613-piece replica of the lamp ...