Yerkes is a place to look up and look deeper. From stargazing and scientific research to performances, exhibitions, and walks through historic grounds, discovery here takes many forms.
Tours, Events, and News
What's Unfolding at Yerkes
From music in the dome to astronomy talks and seasonal celebrations, there’s always something new to experience.
Stand beneath the world’s largest refracting telescope. Explore sweeping architecture and the human stories that shaped modern astronomy.
Open Houses
Hands-on discovery for all ages. Interactive demonstrations, themed evenings, and joyful exploration across science, art, and nature.
Director’s Hidden Spaces
Wind through staircases, corridors, and tucked-away rooms rarely open to the public. A behind-the-scenes look at the observatory few get to see.
Exploring the Night Sky
An intimate evening beneath the dome. When skies are clear, view the cosmos through the Great Refractor and experience astronomy as it was meant to be.
Stay Curious
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Science, nature, history, and the arts come together at Yerkes to create experiences that inspire and expand perspective.
Help Discovery Thrive
Your generosity helps keep Yerkes open, accessible, and alive with curiosity by fueling programs, preserving a historic landmark, and inspiring generations to come.
