Countdown to Sample Return: A Stardust Special

With just days to go till the Stardust spacecraft returns comet and interstellar dust to Earth, we present excerpts from a NASA media briefing. The presenters include Don Brownlee, Stardust Principal Investigator. Emily Lakdawalla is listening to the sounds of space on Q&A, and Bruce Betts is ready for a new year of skywatching.