The John Batchelor Show with Alan Stern and David Grinspoon [Exclusive Video]

John Batchelor sat down with Alan Stern and David Grinspoon. Alan Stern is an engineer and planetary scientist who is most famously known for his work on New Horizons. New Horizons is the spacecraft launched to capture images and information on Pluto. David Grinspoon is an astrobiologist who also works closely with New Horizons. David and Alan are co-authors of “Chasing New Horizons: Inside the Epic First Mission to Pluto”

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