MWO founder George Ellery Hale atop Mt. Wilson, 1904 Huntington Library


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60-in Telescope Viewing

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Tower Cam

The Cosmic Cafe

Station Fire Retrospective

Filming at MWO

Weather & Road Info

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Contact Information

Mount Wilson Observatory is operated by the Mount Wilson Institute under an agreement with the Carnegie Institution of Washington. The Observatory occupies lands belonging to the USDA Forest Service set aside under a long-term leasehold agreement between CIW and the USDA Forest Service. The Observatory subscribes to the USDA non-discrimination policy as expressed here.

Banner photographs by David Jurasevich

Ensure Mount Wilson's Future

by Contributing to the

Second Century Campaign

for Mount Wilson Observatory

As Mount Wilson continues into its second century, a capital campaign is underway to preserve this great observatory for future generations. The goals of the campaign are four-fold:
  • Restore and preserve the Observatory's historic facilities
  • Preserve Mount Wilson as a site for on-going scientific research
  • Create extensive new on-site facilities to foster public understanding of the Mount Wilson heritage and its continuing role in contemporary astronomy
  • Launch on-site and internet-based outreach programs that capitalize on the Mount Wilson tradition to inspire a new generation of scientists.
The major element of the Second Century Campaign is a wonderful new Visitor Center. You can explore our architects' renderings of this proposed facility that will transform Mount Wilson into an important Southern California destination. You can support this campaign directly with your tax deductible donation.

Your contribution in any amount is welcomed. You can donate by check made out to Mount Wilson Institute and sent to:

    The Mount Wilson Institute
    Second Century Campaign
    P.O. Box 1909
    Atlanta, GA 30301-1909
Or, you can contribute immediately on-line here:

Your support of our Second Century Campaign is deeply appreciated and will help preserve this treasure of American science for future generations.

A Message from Observatory Director Hal McAlister describing his deep connections to Mount Wilson is available here.