In July 2015, the New Horizons spacecraft gave us our first close look at Pluto, the most famous dwarf planet in the outskirts of our Solar System. The New Horizons flyby was big news, and the pictures it continues to send back to Earth reveal a world far more complex than anyone realized.
Planet Nine follows Mike Brown and his team at Caltech as they discover evidence of a Kuiper Belt object 10 times more massive than Earth and embark on the search for a new ninth planet far beyond the orbit of Neptune.
Recommended for ages 13 and up.
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