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W.M. KECK observatory “Great telescopes like the Kecks allow us to explore the River of Time back toward its source. The Kecks will allow us, like no other telescope in history, to view the evolving Universe that gave us birth.” —Astronomer Sandra .

Astronomers using ESA’s Herschel and NASA’s Spitzer space telescopes have detected surprisingly rapid changes in the brightness of embryonic stars within the well-known Orion Nebula. Images from Herschel’s far-infrared instrument and two of Spitzer’s instruments working at shorter wavelengths give .