Watch the Leonid Meteor Shower for a Weekend SpectacleNational GeographicLike other meteor showers, the Leonids happen when Earth plows through a trail of debris left in the wake of a comet orbiting the sun, in this case ...Leonid meteor shower peaks early Tuesday morningBaltimore Sun (blog)The Leonid meteor shower will be at its most active late Sunday night into early Monday morning, but it's