Man's best window on the universe is the 200-inch Hale telescope on Palomar Mountain. It is a good window, but not good enough to satisfy the astronomers. It sees only a billion light-years into ...

Saturday morning San Diego County will be able to see an annular solar eclipse. With that in mind, From the Archives looks at the 60-inch telescope at the Palomar Observatory in this undated photo.

The past 25 years have, if anything, been the era of the mega-telescope, an era that began in the 1990s.Until then, the largest optical telescope in the Western Hemisphere had been the 200-inch (5 ...