1400 West Mars Hill Rd

Flagstaff AZ, 86001


Reservations Required


Worlds Revealed

Lowell Observatory has been making history beneath the awe-inspiring dark skies of Flagstaff, Arizona since 1894. Here, you can experience the past, present, and future of astronomy firsthand.

On these storied grounds, you can walk in the footsteps of such prolific figures 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, both on our Mars Hill Campus and at the powerful Lowell Discovery Telescope (LDT) site in Happy Jack, Arizona. 

Book now—your ticket to the universe awaits!!

Plan Your Visit

Step back in time

Percival Lowell at the Historic Clark Refractor Telescope.

Explore the Observatory

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

Covid-19 Safety Precautions

Increased cleaning and sanitizing

Temperature and health screening

Social distancing of at least 6ft

Face masks are required

Wash or sanitize your hands often

Phase 2B

Socially-distanced guided tours and family adventures, offered on a limited basis, with small groups.

Plan Your Visit

Upcoming Events

Virtual Event

November 10 @ 6:00 pm

Virtual Event | Celebrating the James Webb Space Telescope

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