Your Front-Row Seat to
The Cosmos
Expand your universe
Explore Lowell Observatory
Whether you're here to learn from us or dive into groundbreaking research, you're in for an unforgettable adventure! From interactive exhibits to awe-inspiring stargazing nights, every corner of the Lowell Observatory is a gateway to discovery.
Come
to Mars Hill.
Telescope viewing, rooftop decks, historic tours, camps, events and more.
About
Lowell.
Who we are, how we got here, what happens on Mars Hill every day.
Research
& science.
Telescopes, exhibits, and what astronomers are finding with them.
Back
the science.
Philanthropy, membership, volunteering — help keep the lights off on Mars Hill.
New Experience
View the cosmos through our 4.3-meter research telescope
The Lowell Discovery Telescope (LDT) is one of the largest astronomical instruments in the continental United States, built for professional research. Through this new remote program, that same capability is now available for private astrophotography: capture galaxies, nebulae, and star clusters in a level of detail and depth out of reach to most amateur astronomers, guided by members of Lowell staff.
Telescope Viewing
Classes & Excursions
Classes & Excursions
Lowell Discovery Telescope Excursion
Go behind the scenes of one of the largest optical research telescopes in the continental United States.
Exhibits & Open Houses
Shows & Theater
Enhance Your Visit
Enhance your visit with a Dark Sky Planetarium Live Show for only $8 more!
An Invitation to Awe
Experience an open-air amphitheater offering live, guided night sky stargazing tours under Flagstaff’s world-famous dark skies in heated seats. A one-of-a-kind stargazing experience.
