A Leonid Meteor Over Sweden . ... Credit Copyright: P-M Hedхn Explanation: This past weekend, small remnant bits of a distant comet lit up the skies over much of planet Earth. Incoming reports , however, have this year's Leonid meteor shower as less active than Leonid meteor showers a few years ago . ... The parent body of the Leonids meteor shower, Comet Tempel-Tuttle , leaves a trail of expelled sand-size particles every 33 years when it returns to the inner Solar System. ...