New Horizons Mission: Four Questions


New Horizons Mission: Four Questions.

NASA's New Horizons spacecraft is speeding towards Pluto for the first-ever flyby on July 14, 2015. Scientists are eager to collect data on the dwarf planet's chemical and atmospheric makeup, and the Ralph spectrometer will do just that. Instrument scientist Dennis Reuter discusses Ralph, Pluto, and exploration of our solar system's last frontier, the Kuiper Belt.

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