This year marks the 30th anniversary of the Hubble Space Telescope ... 94 inches across — almost as big as the mirror at the Palomar Mount Wilson observatory. There were actually two mirror ...

Hale moved a solar telescope from the Yerkes Observatory west ... Hale’s 100-inch mirror climbed its way up the windy ...

The Mount Wilson Observatory was once home to the world’s largest telescope, and more than a century ago, on Jan. 1, 1925, astronomer Edwin Hubble made one of his most important discoveries at ...

They were chauffeured up the long, zigzagging dirt road to the observatory complex on the summit, nearly a mile above Pasadena. Home to the largest telescope of its day, Mount Wilson was the site ...