• Celebrate with Us!

    Vendors, Speakers, Performances, and more!
    November 16 | Noon - 7pm | Free*

  • Discover New Worlds

  • All-Day Access To The Observatory

    Get Your Tickets

Location

1400 West Mars Hill Rd

Flagstaff AZ, 86001

Hours

See Hours

Weather

If you are having difficulties purchasing a ticket online, please call Visitor Services at 928-774-3358

Explore the Observatory

Plan Your Visit

The Giovale Open Deck Observatory features six advanced telescopes that collectively give you a viewing experience that goes far beyond seeing faint smudges of light.

Worlds Revealed

The Astronomy Discovery Center

Painting of the Astronomy Discovery Center by Greg Mort

Welcome to a new era of Lowell Observatory with the Astronomy Discovery Center.

Nestled in the serene landscapes of Flagstaff, Arizona, Lowell Observatory has long been a beacon for those curious about the cosmos. On November 16, Lowell unveiled its latest marvel: the Marley Foundation Astronomy Discovery Center (ADC). Spanning an impressive 40,000 square feet, this state-of-the-art facility promises to be more than just a building; it’s set to be a journey into the heart of scientific wonder.

Learn More

Upcoming Events

On-Site Event

November 14 @ 7:00 pm

SETI and the Search for Life Beyond Earth | Bill Diamond

On-Site Event

November 16 @ 12:00 pm

30 Years of NAAOP Celebration

On-Site Event

November 22 @ 7:00 pm

Meet a Planetary Astronomer | Dr. Larry Wasserman

On-Site Event

December 27 @ 7:00 pm

Meet a Planetary Astronomer | Dr. Larry Wasserman

Worlds Revealed

Lowell Observatory has been making history beneath the awe-inspiring dark skies of Flagstaff, Arizona, for over 125 years. Experience the past, present, and future of astronomy firsthand.

Walk in the footsteps of prolific figures such as our founder Percival Lowell, Pluto discoverer Clyde Tombaugh, the astronauts of the Apollo Program, and numerous others. History is made every day by our brilliant team of researchers, and discovery awaits you, too. Look through our historic and cutting-edge telescopes yourself to see our universe like you’ve never seen it before.

Plan Your Visit

Step back in time

Percival Lowell at the Historic Clark Refractor Telescope.

Guest Code
of Conduct

Please review our guest code of conduct and prohibited items before visiting the Lowell Observatory campus.

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