The key NASA center remains under a mandatory evacuation order, but officials say both it and Mount Wilson are protected for ...

Using the 100-inch telescope, Hubble looked for stars ... Today, the white domes of Mount Wilson’s telescopes are still ...

With a 100-inch (2.5-meter) diameter mirror for collecting light, the Hooker telescope at Mount Wilson was the largest telescope at the time. Large telescopes are not only more sensitive to ...