Science: Man at the Window

When a German baby, soon to be named Walter Baade, was born in 1893, the universe seemed relatively small and cozy, although full of unknowns. No one knew the size of the stars, what they were made of, or where they got their energy. No one dreamed that the stars are only the doorstep of the universe. When Baade got his doctorate at the University of Gottingen in 1919, most of the mysteries still remained; but in the U.S. new telescopes, bigger and more accurate than anything in Europe, were beginning to probe the sky with new farsightedness. After earning a...

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