1400 West Mars Hill Rd

Flagstaff AZ, 86001


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General Admission

Get all-day access to 127 years of astronomical discovery at Lowell Observatory.

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.

COVID-19 and General Admission

Test negative* for COVID-19 within 72 hours of visit.
(Ages 12+)
*Lab tests only.

Vaccination accepted in lieu of negative test.
(Ages 12+)

Young children wear masks when indoors.
(Ages 2-11)

Negative test not required for young children.
(Ages 2-11)

Phase 3A

General Admission is back, with new protocols to keep guests and staff safe from COVID-19. We will move to Phase 3B—unrestricted General Admission—as soon as the level of community spread permits it.

See our reopening plan.

Upcoming Events

On-Site Event

December 5 @ 10:00 am

Free Community Day!

Virtual Event

December 7 @ 7:00 pm

Virtual Event | Interactive Stargazing | December 7, 2021

Virtual Event

December 16 @ 8:00 pm

Virtual Event | Clark 125th Anniversary | Merope and the Pleiades

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.

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