By Alan Stern I'm a planetary scientist who has specialized in the study of our outer solar system, particularly Pluto, other small planets out there, comets, and the Kuiper Belt. I've had the good fortune to be involved in a lot of space mission teams in my career—29 in total, from suborbital sounding rockets, to Shuttle experiments, to ESA and NASA planetary missions. Of the 29 missions I've been involved in, I've been Principal Investigator of the entire mission or an instrument on the mission on about half. Of those, my favorite, and the one that is probably best known,...
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