Eisenhower satellites 5

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MERICAN ASTRONOMERS REPORT dere are highlights of some papers presented at the 93rd meeting of the American Astronomical Society at Troy, N. Y., in November. Complete abstracts will appear in the Astronomical Journal. nterstellar Grain Formation In general, the light of more distant stars appears dimmer than that of stars near to us, type for type, and this dim- ning is attributed to the action of paru- les of interstellar matter that are about 1/10,000 millimeter in size, according to lassical...