Dutch-Americanastronomer. In 1963 he obtained the spectrum of the radio source 3C 273. He identified hydrogen lines in its spectrum that were redshifted to an unprecedented degree for an object that appeared to be a star, indicating that it lay far off in the Universe. This was the first quasar to be discovered. Schmidt continued to study quasars, finding that their number increases with distance, consistent with the Big Bang but not the steady-state theory.
Subjects: Science and Mathematics.