Press Releases


The Sloan Digital Sky Survey Expands Its Reach

Building on 14 years of extraordinary discoveries, the Sloan Digital Sky Survey (SDSS) has launched a major program of three new surveys, adding novel capabilities to expand its census of the Universe into regions it had been unable to explore…

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A drawing illustrating BAOs - galaxy clusters are surrounded by gray circles, with more galaxies along the circles; a single white line marks the radius of one of the circles

A One-Percent Measure of the Universe

Researchers from the Baryon Oscillation Spectroscopic Survey (BOSS) today announced that they have measured the distances to galaxies more than six billion light-years away to an unprecedented accuracy of just one percent.

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A color drawing of the Milky Way galaxy with long red arrows pointing out of the central bar.

So these stars orbit in a bar…

Forget the restaurant at the end of the Universe — astronomers now have the clearest understanding yet of the bar at the center of the Milky Way. Scientists with the Sloan Digital Sky Survey III (SDSS-III) have announced the discovery of hundreds of stars rapidly moving together in long, looping orbits around the center of our Galaxy.

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A glowing red-orange disk surrounding a small black dot, with thick blue lines radiating out from the center. An inset on the top left shows two SDSS spectra, which appear as wavy red and blue lines.

Gone, with the Wind

The case of the missing quasar gas clouds has been solved by a worldwide team of astronomers, and the answer is blowin’ in the wind.

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