Christopher Michel
@chrismichel
As a boy, @RPappalardo hung handmade planets from his bedroom ceiling. Their moons were bits of masking tape pressed onto toothpicks.
Years later at Cornell, Carl Sagan let him sit in on a graduate seminar about ices and oceans in the outer solar system. Europa caught his
Years later at Cornell, Carl Sagan let him sit in on a graduate seminar about ices and oceans in the outer solar system. Europa caught his
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