What is the mission of the Kepler Space Observatory launched by NASA in 2009?
To discover Earth-size or smaller planets orbiting other stars in our region of the Milky Way
to discover earth size or smaller planets orbiting other stars in our region of milky way
to discover earth size or smaller planets orbiting other stars in our region of milky way
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To discover Earth-size or smaller planets orbiting other stars in our region of the Milky Way