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  1. Oxford American Dictionary

    Hubble, Edwin Powell

    • IPA[ˈhəbəl]

    美式

    • ph.
      (1889–1953), US astronomer. He studied galaxies and devised a classification system for them. In 1929, he proposed what is now known as Hubble's law with its constant of proportionality (Hubble's constant). The Hubble Space Telescope, deployed in space in 1990, is named for him.