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In the next few hours, precisely on February 14 at 20:48 PST (February 15 at 04:48 UTC), the Stardust spacecraft will have a flyby with the comet 9P/Tempel (also known as comet Tempel 1).

Tau Zero journalist Larry Klaes looks at the NExT (New Exploration of Tempel) mission, which gives us a second crack at observing comet Tempel

Lowell astronomer David Schleicher led a team that made the best measurement of the comet's rotation period, showing that the rotation period of Tempel 2's nucleus has lengthened, or the comet has slowed down, by about 10 seconds every five years.

The time dependence of the changes in the emission spectra of Comet 9P/Tempel 1 after Deep Impact are derived and discussed.