Over 20 years after construction began, and over six months after its dedication, the Hale Telescope saw first light on Jan. 26, 1949. It was the largest telescope in the world, employing a 200-inch ...

More times than she can remember, Jean Mueller stood on the catwalk of the 200-inch Hale Telescope at the Palomar Observatory scanning the night sky, trying to time the exact moment to close the dome.

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Gelatin silver print of Will ...

As US astronomers cheer the completion of the state-of-the-art project to rejuvenate the iconic Hale Telescope, one key collaborator is locked out of the celebrations and banned from exporting to the ...