SPACE PHOTOS THIS WEEK: Thousand-Ruby Galaxy, More

SPACE PHOTOS THIS WEEK: Thousand-Ruby Galaxy, More
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September 2, 2008--Members of the LSST construction team pose around the telescope's 27.5-foot-diameter (8.4-meter) mirror blank in Tucson, Arizona, on August 11.

The instrument will use three large mirrors to image the entire sky over three-night periods from its perch atop Cerro Pachon in northern Chile.

LSST's time-lapse digital images will help astronomers spot fast-moving objects like asteroids, faint objects like distant Earth-like planets, and light-emitting phenomena like supernovae.

The telescope's proposed "first light" is in 2014.
—Image by Howard Lester/LSST Corporation
 
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