Modern astronomy takes in everything from subatomic particles (invisibly small) to the universe (invisibly big). Meeting last week at Columbia University, members of the American Astronomical Society just about covered the whole field. Highlights:
The Stars Waltz. Double stars, whirling in space, are highly prized and much sought after by astronomers. Much of science's information on all stars comes from double stars.
A star may look as if it were on its own while revolving around (and concealing with its glare) a companion star as big as the earth's sun. Such double stars give...
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