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        Who Needs Galaxies? | NOVA Online

        We would not be here if it were not for our galaxy, says Sandra Faber, University Professor of Astronomy at the University of California, Santa Cruz. That's because the strong gravitational pull of galaxies like the Milky Way sucks in the heavy elements that go into making up planets and people and all other non-gaseous matter in the universe. Find out more in this article from NOVA Online.

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