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  • All-Day Access To The Observatory

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1400 West Mars Hill Rd

Flagstaff AZ, 86001


See Hours


General Admission



  • Historic campus
  • Exhibits & science demos
  • Constellation tours
  • Daily science talks
  • Stargazing

Get all-day access to 128 years of astronomical discovery at Lowell Observatory.

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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.

Upcoming Events

On-Site Event

September 26 @ 2:30 pm

Earth Strikes Back! NASA's Planetary Defense Mission: Impact Party

On-Site Event

September 26 @ 4:00 pm

Flagstaff Festival of Science | Monarch Butterfly Migration in Arizona

On-Site Event

September 26 @ 5:00 pm

Flagstaff Festival of Science | The Hidden Diversity of the Triassic Period at Petrified Forest National Park

Off-Site Event

September 27 @ 6:30 pm

Astronomy on Tap

Virtual Event

September 29 @ 10:00 pm

Interactive Stargazing | It's Stargazing, Reimagined! September 29, 2022

On-Site Event

October 1 @ 5:00 pm

Findlay Toyota International Astronomy Day

On-Site Event

October 1 @ 7:00 pm

Meet An Astronomer

On-Site Event

October 8 @ 7:00 pm

Meet An Astronomer

On-Site Event

October 15 @ 7:00 pm

Meet An Astronomer

On-Site Event

October 22 @ 7:00 pm

Meet An Astronomer

On-Site Event

October 29 @ 7:00 pm

Meet An Astronomer

On-Site Event

November 5 @ 7:00 pm

Meet An Astronomer

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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