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ENGLISHLAND |
Learning English Online Belajar Bahasa Inggris Online |
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Hubble's Research
By 1925, Hubble has devised a classification system for the structure of galaxies and provided conclusive observational evidence for the expansion of the universe. His work pushed the one-hundred-inch Mount Wilson telescope beyond its capability and provided strong impetus for the construction of an instrument twice its size at Mount Palomar, which Hubble used during his last years of research. The telescope that bears his name was launched on a space shuttle in 1990 and orbits the earth, collecting data about the size and age of the universe.
in Indonesian language: Penelitian Hubble
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