This meteor shower is caused by debris left behind by Comet 8P/Tuttle, a periodic comet that last passed Earth in 2008 and will return in 2035. As Earth moves through this debris field ...

Still, numbers can sometimes reach 25, according to the American Meteor Society ... inner solar system in 2021 and is next due back in 2035. In 2008, scientists used the now-defunct Arecibo ...

The most recent storm from the Leonids occurred in 2002, with another expected around 2035, but the American Meteor Society reports the next intense storm may not occur until around 2099.