PLEASE NOTE: HOLIDAY OPEN HOUSE IS CANCELED DUE TO FORECASTED SNOW AND EXTREME COLD!

Clair Patterson was an American geochemist who was tasked with the project of using radioactive dating to measure the age of the Earth. The process involved comparing the concentrations of uranium and lead in rock samples, but Patterson quickly discovered that lead severely contaminated his laboratory. This realization began a lifelong crusade to combat environmental lead poisoning by taking on the oil industry and their use of leaded gasoline. This class will overview the work of this often unsung hero.

Class level: Introductory - This class is recommended for guests of any background.

Tickets:

Non-members - $25/class

Members - $20/class

Student (with valid ID) - $10/class

Image credit: California Institute of Technology

Tickets: $15/adult, $7/child, FREE for Observatory Members 

Weekly Public Program

Astronomy Evening at the Cincinnati Observatory is the perfect program to get acquainted with all of the offerings of your local observatory. Located in picturesque Mount Lookout on the East Side of Cincinnati, the Cincinnati Observatory is the oldest one of its kind in the country that still uses its original telescope from 1845, and now you too will get to participate.

This 90 minute long, family-friendly program features an Astronomy themed presentation on the different things you can experience in the night sky. Tours of our historic buildings and viewing through our telescope takes place during the second part of the evening (weather permitting).

Tickets: $15/adult, $7/child, FREE For Members.  

Reservations required.  Space is limited.

Embark on a romantic celestial journey with our "Late Night Date Night" at the Cincinnati Observatory. Couples will enjoy a star-filled evening complete with guided stargazing through historic telescopes (weather permitting), an intimate astronomy talk, and a cozy atmosphere perfect for making memories under the night sky. Whether it’s a first date or a special anniversary, this enchanting evening promises to bring the magic of the cosmos a little closer. Ticket price includes admission for two, mocktails, and dessert. 

Tickets: $80 per couple  18+ Only.  

Stories From Our History

This special program offers those seeking to learn more about the Observatory’s history a more detailed, in-depth guided tour at Noon or 1:30pm. All the wonderful details covered in a Daytime Tour are included - as well as more stories of how the Observatory came to be (and almost didn’t!). You'll also discover the Observatory’s role in weather forecasting and timekeeping as well as visit our interactive Sundial, original 1843 cornerstone, and more! Tours last approximately one hour with plenty of time for questions and some behind-the-scenes fun! Perfect for local history, astronomy and science buffs ages 12 and up.

General Admission $10 (recommended for kids 12+), $5/senior, $5/veteran, FREE for Observatory members

Space is limited.  Advanced reservations are recommended.

When massive stars die, they do so in spectacular fashion—erupting as supernovae that can briefly outshine an entire galaxy. These cosmic explosions come in several distinct types, each revealing something different about how stars live and end. In this class, we’ll explore what triggers supernovae, how these blasts forge and distribute the heavy elements that shape planets and life, and how astronomers use them as cosmic mile markers to map the vast distances between galaxies.

Class level: Introductory - This class is recommended for guests of any background. Classes will be held in Mitchel (smaller) building.

Tickets: Non-members - $25/class, Members - $20/class, Student (with valid ID) - $10/class

Earth is constantly bombarded by dust and debris from space, most of which burns up harmlessly in our atmosphere. But history—and the solar system itself—reminds us that large impacts do occur, and that it’s only a matter of time before our planet encounters another sizable asteroid or comet. In this class, we’ll explore how often significant impacts happen, what we’ve learned from past events, and the realistic strategies scientists are developing to detect, deflect, or mitigate a threatening object.

Class level: Introductory - This class is recommended for guests of any background. Classes will be held in Mitchel (smaller) building.

Tickets: Non-members - $25/class, Members - $20/class, Student (with valid ID) - $10/class

It’s been just over a decade since scientists made the first confirmed detection of a gravitational wave—subtle ripples in the fabric of space-time predicted by Einstein. These waves have opened an entirely new window onto the Universe, revealing phenomena that were once invisible to traditional astronomy. In this class, we’ll explore how gravitational waves are detected, what they’ve taught us about their extraordinary sources, and how this emerging field is reshaping the future of astrophysics.

Class level: Introductory - This class is recommended for guests of any background. Classes will be held in Mitchel (smaller) building.

Tickets: Non-members - $25/class, Members - $20/class, Student (with valid ID) - $10/class