In the first half of the 20th Century, eminent astronomers such as Harlow Shapley and Edwin Hubble used the incomparable facilities of Mount Wilson Observatory to forever alter humankind's view of our place in a vast and expanding Universe. Today, Mount Wilson's original solar and night-time telescopes, the world's largest for two generations of astronomers, have been joined by new facilities achieving unprecedented high-resolution views of the stars.

Explore Mount Wilson in Person -

• Take a Sat or Sun guided tour. (These tours resume weekends after 1 Apr 2015)
• Schedule your own special tour. (Available year-round)
• Have lunch at our Cosmic Cafe. (Cafe reopens weekends after 1 Apr 2015)
• For an experience of a lifetime, view celestial objects through our 60-inch or 100-inch telescopes.

Explore Mount Wilson On-Line -

• Take an incredible spherical panoramic tour.
• Watch a 13-minute video narrated by Hugh Downs.
• View a picture and word virtual tour.
• Learn about the Observatory's history of MWO.
• Watch Huell Howser's California's Gold episode on Mount Wilson.
• Check out the website of the CHARA Array.
• Watch a video from the American Museum of Natural History about CHARA.
• Look at the latest image of the Observatory from Towercam.
• See today's sunspot drawing from the 150-ft solar tower.
• Watch Above the Inversion Layer and experience a full revolution of the 100-inch Telescope dome.

Support Mount Wilson Observatory -

• Join the Friends of MWO.
• Contribute to our Second Century Campaign.

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