Highly Recommended

Lowell Observatory

On Mars Hill in Flagstaff, Lowell Observatory, founded in 1894, is renowned for its discovery of Pluto in 1930. One of the oldest U.S. observatories, it offers telescope viewings and interactive science talks under Flagstaff’s dark skies.

About the experience

Lowell Observatory, located in Flagstaff, Arizona, is one of the country’s oldest astronomical observatories and is famous for its significant contributions to space science. Here’s what makes it a fascinating destination for stargazers and science enthusiasts:

  • Historic Discovery Site of Pluto: Lowell Observatory is best known as the site where Pluto was discovered in 1930 by astronomer Clyde Tombaugh. The Pluto Discovery Telescope is preserved and open for visitors to see, making it a highlight of the observatory.
  • Public Programs and Stargazing Events: The observatory offers public stargazing sessions with state-of-the-art telescopes, allowing visitors to observe planets, stars, and galaxies. Nightly tours and special astronomy events make it a popular spot for families and space enthusiasts.
  • Interactive Exhibits and Science Displays: Through hands-on exhibits, digital presentations, and guided tours, the observatory offers educational experiences that explore the science of space and the history of astronomical discoveries made at Lowell.
  • Dark Skies and Ideal Viewing Conditions: Flagstaff is known for its “dark sky” status, meaning the area has minimal light pollution, making it one of the best places in the country for observing celestial bodies and enjoying clear, bright views of the night sky.

Lowell Observatory is a landmark of astronomical research and discovery, offering visitors the chance to learn about the universe, experience historic telescopes, and enjoy Arizona’s beautiful dark skies.

Interactive Map

Schedule

Open Monday, Wednesday, Thursday, Friday, Saturday, and Sunday from 12:00 PM to 10:00 PM.

Entrance Fee

$25
Adults: $25; Seniors (65+), College Students (with ID), and AAA Members: $23; Youth (ages 5–17): $16; Children under 5: Free.
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