The Leonids are thought to be caused by dust and debris left in the inner solar system by Comet 55P/Tempel-Tuttle, which orbits the sun every 33 Earth years. This year, the predicted peak is just ...

Skygazers have comet 55P/Tempel-Tuttle to thank for the Leonid meteors. The comet was independently discovered by both Ernst Tempel in 1865 and Horace Tuttle the following year. The Leonids meteor ...