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The NASA orbiter that ultimately landed on the surface of the asteroid Eros was:
Q3: The overall dimming of starlight by interstellar
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Q46: Why do Saturn's rings exist?
Q52: Which of the four Galilean moons is
Q70: The proper motion of a star is
Q75: Pluto has 3 known moons: Charon, Hydra
Q76: Why do scientists think Titan has an
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Q110: All classes of binary stars yield the