We model the thermal evolution and activity of comet 9P/Tempel 1, in anticipation of the Deep Impact mission encounter with the comet. We also investigate the possible outcome of a projectile impact, ...

The Leonids – one of the more prolific annual displays – are usually fast, bright meteors and are associated with Comet Tempel-Tuttle. A tiny path of debris is left by the comet as it follows ...