Caption An artist envisions what the approach of NASA's Stardust-NExT (New Exploration of Tempel) spacecraft may look like when it arrives at Comet Tempel 1 on Valentine's Day. The University of ...

Here's the most important information if you want to glimpse the Leonids this November.

When the Leonids fly across the sky, stargazers know that the comet 55P/Tempel-Tuttle is nearby. Every year, the iconic meteor shower offers a spectacular show… and experts say this weekend is ...

17 to 18. The Leonids are produced when Earth passes through the debris left behind by comet 55P/Tempel-Tuttle during its highly elliptical orbit around the sun every 33 years. The Leonids are ...