Astronomers Count Galaxies in Deepest Infared Images of the Sky

PASADENA—Caltech astronomers have counted galaxies to a limit of about 24th magnitude, the faintest ever counted in infrared light. Observing five small patches of sky with the 10-meter telescope at the W. M. Keck Observatory in Hawaii, the scientists found that the numbers of galaxies continued to rise with increasing faintness, a result that agrees well with models in which the universe is "open" and will continue to expand forever.

Astronomer John Carlstrom Receives Packard Fellowship

Caltech astronomer John Carlstrom has received a $500,000 Packard Fellowship in Science and Engineering to support his research in radio and submillimeter-wave astronomy.

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