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  1. 19179

    I’m curious. What’s the significance of the planets sharing the same plane? Isn’t that a coincidence? Robert T. DruryLos Angeles, Calif. It could be coincidence, but the plane that roughly defines the planets’ orbits may indicate the orientation of the protoplanetary disk of gas, dust, and ice that originally surrounded the young sun .–R. Cowen

    By Science News
  2. Astronomy

    Hefty Discovery: Finding a Kuiper belt king

    A newly discovered celestial body appears to be the largest object that scientists have found in the solar system since their detection of Pluto in 1930.

    By Ron Cowen
  3. Health & Medicine

    Calcium may become a dieter’s best friend

    Enriching the diet with calcium, especially from dairy products, can switch the body's fat cells from storing calories to burning them.