The summit of Mount Wilson looms over Pasadena at about 5,715 feet, with the white domes of the observatory buildings and surrounding radio towers visible to drivers along Interstate 210 below.

Fire crews worked to keep the flames off the summit, which is also the site ... It's hard to understate the importance of Mount Wilson to the field of astronomy: It is home to the 100-inch Hooker ...

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 ...